Virtusa (VRTU) 10-K20 May 152015 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Mar. 31, 2015	15-May-15	Sep. 30, 2014
Document and Entity Information
Entity Registrant Name	VIRTUSA CORP
Entity Central Index Key	1207074
Document Type	10-K
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Current Fiscal Year End Date	-28
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$976,916,126
Entity Common Stock, Shares Outstanding		29,647,865
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Mar. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Current assets:
Cash and cash equivalents	$124,802	$82,761
Short-term investments	90,414	55,888
Accounts receivable, net of allowance of $881 and $1,130 at March 31, 2015 and 2014, respectively	75,431	64,662
Unbilled accounts receivable	27,914	26,548
Prepaid expenses	7,428	9,036
Deferred income taxes	7,639	6,610
Restricted cash	45	2,662
Other current assets	13,565	11,922
Total current assets	347,238	260,089
Property and equipment, net	37,988	35,346
Long-term investments	20,732	62,015
Deferred income taxes	4,764	4,651
Goodwill	50,360	53,448
Intangible assets, net	21,909	28,661
Other long-term assets	6,746	5,215
Total assets	489,737	449,425
Current liabilities:
Accounts payable	8,693	11,002
Accrued employee compensation and benefits	26,915	27,175
Accrued expenses and other current liabilities	23,762	27,299
Income taxes payable	1,834	1,294
Total current liabilities	61,204	66,770
Deferred income taxes	1,996	2,744
Long-term liabilities	2,762	5,841
Total liabilities	65,962	75,355
Commitments and contingencies (See Note 16)
Stockholders' equity:
Undesignated preferred stock, $0.01 par value; Authorized 5,000,000 shares at March 31, 2015 and 2014, respectively; Issued zero shares at March 31, 2015 and 2014, respectively
Common stock, $0.01 par value; Authorized 120,000,000 shares at March 31, 2015 and 2014, respectively; Issued 30,854,979 and 30,263,243 shares at March 31, 2015 and 2014, respectively; Outstanding 28,998,276 and 28,406,540 shares at March 31, 2015 and 2014, respectively	309	303
Treasury stock, 1,856,703 common shares, at cost, at March 31, 2015 and 2014, respectively	-9,652	-9,652
Additional paid-in capital	283,178	269,511
Retained earnings	184,068	141,622
Accumulated other comprehensive loss	-34,128	-27,714
Total stockholders' equity	423,775	374,070
Total liabilities, undesignated preferred stock and stockholders' equity	$489,737	$449,425

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Mar. 31, 2014
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Consolidated Balance Sheets
Accounts receivable, allowance (in dollars)	$881	$1,130
Undesignated preferred stock, par value (in dollars per share)	$0.01	$0.01
Undesignated preferred stock, Authorized shares	5,000,000	5,000,000
Undesignated preferred stock, Issued shares	0	0
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, Authorized shares	120,000,000	120,000,000
Common stock, Issued shares	30,854,979	30,263,243
Common stock, Outstanding shares	28,998,276	28,406,540
Treasury stock, common shares	1,856,703	1,856,703

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Consolidated Statements of Income
Revenue	$478,986	$396,933	$333,175
Costs of revenue	304,422	250,533	215,866
Gross profit	174,564	146,400	117,309
Operating expenses:
Selling, general and administrative expenses	121,996	103,988	84,450
Income from operations	52,568	42,412	32,859
Other income (expense):
Interest income	5,264	3,726	2,977
Foreign currency transaction gains (losses)	-357	-396	-68
Other, net	-75	182	91
Total other income	4,832	3,512	3,000
Income before income tax expense	57,400	45,924	35,859
Income tax expense	14,954	11,549	7,461
Net income	$42,446	$34,375	$28,398
Net income per share of common stock:
Basic earnings per share	$1.48	$1.32	$1.14
Diluted earnings per share	$1.44	$1.27	$1.11

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Consolidated Statements of Comprehensive Income
Net income	$42,446	$34,375	$28,398
Other comprehensive loss net of tax:
Foreign currency translation adjustments	-12,312	-6,335	-3,809
Pension plan adjustment, net of tax effect of $(12), $0, $0	-354	202	-78
Unrealized gain (loss) on available-for-sale securities, net of tax effect of $21, $(28), $0	36	-51	5
Unrealized gain (loss) on effective cash flow hedges, net of tax effect of $2,017, $(785), $1,506	6,216	-2,816	3,511
Other comprehensive loss	-6,414	-9,000	-371
Comprehensive income	$36,032	$25,375	$28,027

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Consolidated Statements of Comprehensive Income
Pension plan adjustment, tax	($12)	$0	$0
Unrealized gain (loss) on available-for-sale securities, tax	21	-28	0
Unrealized gain (loss) on effective cash flow hedges, tax	$2,017	($785)	$1,506

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total
In Thousands, except Share data, unless otherwise specified	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Treasury Stock, Value, Beginning Balance at Mar. 31, 2012		($8,244)
Balance at Mar. 31, 2012	266		165,646	78,849	-18,343	218,174
Treasury Stock, Shares, Beginning Balance at Mar. 31, 2012		-1,759,388
Balance (in shares) at Mar. 31, 2012	26,553,299
Increase (Decrease) in Stockholders' Equity
Proceeds from the exercise of stock options and vesting of restricted stock	4		2,165			2,169
Proceeds from the exercise of stock options and vesting of restricted stock (in shares)	480,519
Restricted stock awards withheld for tax			-1,390			-1,390
Share based compensation			5,876			5,876
Repurchase of common stock		-1,408				-1,408
Repurchase of common stock (in shares)		-97,315
Excess tax benefits from stock option exercises			759			759
Other comprehensive loss					-371	-371
Net income				28,398		28,398
Treasury Stock, Value, Ending Balance at Mar. 31, 2013		-9,652
Balance at Mar. 31, 2013	270		173,056	107,247	-18,714	252,207
Treasury Stock, Shares, Ending Balance at Mar. 31, 2013		-1,856,703
Balance (in shares) at Mar. 31, 2013	27,033,818
Increase (Decrease) in Stockholders' Equity
Proceeds from the exercise of stock options and vesting of restricted stock	6		2,569			2,575
Proceeds from the exercise of stock options and vesting of restricted stock (in shares)	584,425
Proceeds from issuance of common stock	27		86,200			86,227
Proceeds from issuance of common stock (in shares)	2,645,000
Restricted stock awards withheld for tax			-3,678			-3,678
Share based compensation			8,166			8,166
Excess tax benefits from stock option exercises			3,198			3,198
Other comprehensive loss					-9,000	-9,000
Net income				34,375		34,375
Treasury Stock, Value, Ending Balance at Mar. 31, 2014		-9,652				-9,652
Balance at Mar. 31, 2014	303		269,511	141,622	-27,714	374,070
Treasury Stock, Shares, Ending Balance at Mar. 31, 2014		-1,856,703				-1,856,703
Balance (in shares) at Mar. 31, 2014	30,263,243					28,406,540
Increase (Decrease) in Stockholders' Equity
Proceeds from the exercise of stock options and vesting of restricted stock	6		2,734			2,740
Proceeds from the exercise of stock options and vesting of restricted stock (in shares)	591,736
Restricted stock awards withheld for tax			-4,857			-4,857
Share based compensation			11,098			11,098
Excess tax benefits from stock option exercises			4,692			4,692
Other comprehensive loss					-6,414	-6,414
Net income				42,446		42,446
Treasury Stock, Value, Ending Balance at Mar. 31, 2015		-9,652				-9,652
Balance at Mar. 31, 2015	$309		$283,178	$184,068	($34,128)	$423,775
Treasury Stock, Shares, Ending Balance at Mar. 31, 2015		-1,856,703				-1,856,703
Balance (in shares) at Mar. 31, 2015	30,854,979					28,998,276

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Cash provided by operating activities
Net income	$42,446	$34,375	$28,398
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,552	11,502	9,040
Share-based compensation expense	11,098	8,166	5,876
Reversal of contingent consideration	-1,833
Provision for doubtful accounts, net	-134	750	193
Loss (gain) on disposal of property and equipment	127	53	-100
Deferred income taxes, net	-2,969	1,618	-1,836
Foreign currency losses, net	357	396	68
Amortization of discounts and premiums on investments	1,242
Excess tax benefits from stock option exercises	-4,692	-3,198	-759
Net changes in operating assets and liabilities:
Accounts receivable and unbilled receivable	-17,128	-3,429	-19,462
Prepaid expenses and other current assets	4,497	-4,905	-3,501
Other long-term assets	-603	-1,598	471
Accounts payable	-212	-228	1,604
Accrued employee compensation and benefits	-4,385	4,452	-1,440
Accrued expenses and other	4,774	-2,717	3,883
Income taxes payable	1,553	3,886	550
Other long-term liabilities	1,227	-204	-232
Net cash provided by operating activities	48,917	48,919	22,753
Cash flows used for investing activities:
Proceeds from sale of property and equipment	160	80	117
Purchase of short-term investments	-14,075	-23,313	-13,676
Proceeds from sale or maturity of short-term investments	38,696	10,802	12,717
Purchase of long-term investments	-33,720	-70,151	-11,303
Proceeds from sale or maturity of long-term investments	13,612	800	1,258
Business acquisitions, net of cash acquired	-2,660	-21,460	-2,775
Decrease (Increase) in restricted cash	2,639	-2,320	2,544
Purchase of property and equipment	-14,729	-7,482	-12,587
Net cash used for investing activities	-10,077	-113,044	-23,705
Cash flows provided by financing activities:
Proceeds from exercise of common stock options	2,740	2,575	2,169
Proceeds from issuance of common stock		86,227
Repurchases of common stock			-1,408
Borrowings on revolving credit facility		20,000
Repayment of revolving credit facility		-20,000
Payment of debt issuance costs		-242
Payment of contingent consideration related to acquisitions	-2,087
Principal payments on capital lease obligation	-120	-18	-1,026
Excess tax benefits from stock option exercises	4,692	3,198	759
Net cash provided by financing activities	5,225	91,740	494
Effect of exchange rate changes on cash and cash equivalents	-2,024	-2,053	-448
Net increase (decrease) in cash and cash equivalents	42,041	25,562	-906
Cash and cash equivalents, beginning of year	82,761	57,199	58,105
Cash and cash equivalents, end of year	124,802	82,761	57,199
Supplemental disclosure of cash flow information:
Cash paid for interest	24	13	73
Cash receipts from interest	5,177	3,337	2,740
Cash paid for income tax	12,696	10,063	8,426
Non cash investing activities
Assets acquired under capital lease	$269	$142	$37

Nature_of_the_Business

Nature of the Business	12 Months Ended
Nature of the Business	Mar. 31, 2015
Nature of the Business
Nature of the Business
	(1) Nature of the Business
	Virtusa Corporation (the "Company" or "Virtusa") is a global information technology services company. The Company uses an enhanced global delivery model to provide end-to-end information technology ("IT") services to Global 2000 companies. These services include IT and business consulting, user experience ("UX") design, development of IT applications, maintenance and support services, systems integration, infrastructure and managed services. Using its enhanced global delivery model, innovative platforming approach and industry expertise, the Company provides cost-effective services that enable its clients to accelerate time to market, improve service and enhance productivity. Headquartered in Massachusetts, Virtusa has offices in the United States, the United Kingdom, Sweden, Germany, Netherlands and Austria and global delivery centers in India, Sri Lanka, Hungary, Singapore and Malaysia, as well as a near shore center in the United States.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Mar. 31, 2015
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies
	(2) Summary of Significant Accounting Policies
	(a)Principles of Consolidation
	The consolidated financial statements reflect the accounts of the Company and its direct and indirect subsidiaries, Virtusa Consulting Services Private Limited, Virtusa Software Services Private Limited and Virtusa Technologies (India) Private Limited, each organized and located in India, Virtusa (Private) Limited, organized and located in Sri Lanka, Virtusa UK Limited, organized and located in the United Kingdom, Virtusa Securities Corporation, a Massachusetts securities corporation, Virtusa International, B.V., organized and located in the Netherlands, Virtusa Hungary Kft., incorporated and located in Hungary, Virtusa Germany GmbH, organized and located in Germany, Virtusa Switzerland GmbH, organized and located in Switzerland, Virtusa Singapore Private Limited, organized and located in Singapore, Virtusa Malaysia Private Limited Company located in Malayisa, Virtusa Austria GmbH, organized and located in Austria, Virtusa Philippines Inc. located in the Philippines, TradeTech Consulting Scandinavia AB located in Sweden and Virtusa Canada, Inc., a corporation organized under the laws of British Columbia, Canada. All intercompany transactions and balances have been eliminated in consolidation.
	(b)Use of Estimates
	The preparation of financial statements in accordance with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, including the recoverability of tangible assets, disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenue and expenses during the reported period. Management re-evaluates these estimates on an ongoing basis. The most significant estimates relate to the recognition of revenue and profits based on the percentage of completion method of accounting for fixed-price contracts, share-based compensation, income taxes, including reserves for uncertain tax positions, deferred taxes and liabilities, intangible assets, contingent consideration and valuation of financial instruments including derivative contracts and investments. Management bases its estimates on historical experience and on various other factors and assumptions that are believed to be reasonable under the circumstances. The actual amounts may vary from the estimates used in the preparation of the accompanying consolidated financial statements.
	(c)Foreign Currency Translation
	The functional currencies of the Company's non-U.S. subsidiaries are the local currency of the country in which the subsidiary operates except for Hungary, which operates in the euro. Operating and capital expenditures of the Company's subsidiaries located in India, Sri Lanka, the Netherlands, Singapore, Malaysia, the Philippines, Germany, Austria, Sweden and the United Kingdom, are denominated in their local currency which is the currency most compatible with their expected economic results. India and Sri Lanka local expenditures form the underlying basis for intercompany transactions which are subsequently conducted in both U.S. dollars and U.K. pounds sterling. U.K. client sales contracts are primarily conducted in U.K. pounds sterling.
	All transactions and account balances are recorded in the functional currency. The Company translates the value of these non-U.S. subsidiaries' local currency denominated assets and liabilities into U.S. dollars at the rates in effect at the balance sheet date. Resulting translation adjustments are recorded in stockholders' equity as a component of accumulated other comprehensive income (loss). The local currency denominated statement of income amounts are translated into U.S. dollars using the average exchange rates in effect during the period. Realized foreign currency transaction gains and losses are included in the consolidated statements of income. The Company's non-U.S. subsidiaries do not operate in "highly inflationary" countries.
	(d)Derivative Instruments and Hedging Activities
	The Company enters into forward foreign exchange contracts to mitigate the risk of changes in foreign exchange rates on intercompany transactions and forecasted transactions denominated in foreign currencies. The Company designates derivative contracts as cash flow hedges if they satisfy the criteria for hedge accounting. Changes in fair values of derivatives designated as cash flow hedges are deferred and recorded as a component of accumulated other comprehensive income, net of taxes, until the hedged transactions occur and are then recognized in the consolidated statements of income. Changes in fair value of derivatives not designated as hedging instruments and the ineffective portion of derivatives designated as cash flow hedges are recognized immediately in the consolidated statements of income.
	With respect to derivatives designated as cash flow hedges, the Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking various hedge transactions. The Company also formally assesses both at the inception of the hedge and on an ongoing basis, whether each derivative will be highly effective in offsetting changes in fair values or cash flows of the hedged item. If the Company determines that a derivative or a portion thereof is not highly effective as a hedge, or if a derivative ceases to qualify for hedge accounting, the Company prospectively discontinues hedge accounting with respect to that derivative.
	(e)Cash and Cash Equivalents and Restricted Cash
	The Company considers all highly liquid investments with a remaining maturity of three months or less from the date of purchase to be cash equivalents. At March 31, 2015, cash equivalents consisted of money market instruments and certificates of deposit. The Company had short-term and long-term restricted cash totaling $112 and $2,755 at March 31, 2015 and 2014, respectively. During the fiscal year March 31, 2015 the Company released $684 and $1,976 which were held back related to the acquisition of OSB Consulting LLC ("OSB") and TradeTech Consulting Scandinavia AB ("TradeTech"), respectively. Restricted cash also includes restricted deposits with banks to secure the import of computer and other equipment, bank guarantees associated with the construction of the Company's facility in India and Sri Lanka.
	(f)Investment Securities
	The Company classifies all debt securities as "available for sale". These securities are classified as short-term investments and long-term investments on the consolidated balance sheet and are carried at fair market value. Any unrealized gains and losses on available for sale securities are reported in accumulated other comprehensive income, net of tax, as a separate component of stockholders' equity unless the decline in value is deemed to be other-than-temporary, in which case, investments are written down to fair value and the loss is charged to the consolidated statement of income. Any realized gains and losses on trading securities are charged to the consolidated statement of income. The Company determines the cost of the securities sold based on the specific identification method.
	The Company conducts a periodic review and evaluation of its investment securities to determine if the decline in fair value of any security is deemed to be other-than-temporary. Other-than-temporary impairment losses are recognized on securities when: (i) the holder has an intention to sell the security; (ii) it is more likely than not that the security will be required to be sold prior to recovery; or (iii) the holder does not expect to recover the entire amortized cost basis of the security. Other-than-temporary losses are reflected in earnings as a charge against gain on sale of investments to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. The Company has no intention to sell any securities in an unrealized loss position at March 31, 2015 nor is it more likely than not that the Company would be required to sell such securities prior to the recovery of the unrealized losses. At March 31, 2015, the Company believes that all impairments of investment securities are temporary in nature.
	(g)Goodwill and Other Intangible Assets
	The Company accounts for its business combinations under the acquisition method of accounting. The Company allocates the cost of an acquired entity to the assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price for acquisitions over the fair value of the net assets acquired, including other intangible assets, is recorded as goodwill. Goodwill is not amortized but is tested for impairment at the reporting unit level, defined as the Company level, at least annually in the fourth quarter of each fiscal year or more frequently when events or circumstances occur that indicate that it is more likely than not that an impairment has occurred. In assessing goodwill for impairment, an entity has the option to assess qualitative factors to determine whether events or circumstances indicate that it is not more likely than not that fair value of a reporting unit is less than its carry amount. If this is the case, then performing the quantitative two-step goodwill impairment test is unnecessary. An entity can choose not to perform a qualitative assessment for any or all of its reporting units, and proceed directly to the use of the two-step impairment test. The two-step process begins with an estimation of the fair value of a reporting unit. Goodwill impairment exists when a reporting unit's carrying value of goodwill exceeds its implied fair value. Significant judgment is applied when goodwill is assessed for impairment.
	For the Company's goodwill impairment analysis, the Company operates under one reporting unit. Any impairment would be measured based upon the fair value of the related assets. In performing the first step of the goodwill impairment testing and measurement process, the Company compares its entity-wide estimated fair value to net book value to identify potential impairment. Management estimates the entity-wide fair value utilizing the Company's market capitalization, plus an appropriate control premium. Market capitalization is determined by multiplying the shares outstanding on the assessment date by the market price of the Company's common stock. If the market capitalization is not sufficiently in excess of the Company's book value, the Company will calculate the control premium which considers appropriate industry, market and other pertinent factors. If the fair value of the reporting unit is less than the book value, the second step is performed to determine if goodwill is impaired. If the Company determines through the impairment evaluation process that goodwill has been impaired, an impairment charge would be recorded in the consolidated statement of income. The Company completed the annual impairment test required during the fourth quarter of the fiscal year ended March 31, 2015 and determined that there was no impairment. The Company continues to closely monitor its market capitalization. If the Company's market capitalization, plus an estimated control premium, is below its carrying value for a period considered to be other-than-temporary, it is possible that the Company may be required to record an impairment of goodwill either as a result of the annual assessment that the Company conducts in the fourth quarter of each fiscal year, or in a future quarter if an indication of potential impairment is evident. The estimated fair value of the reporting unit on the assessment date significantly exceeded the carrying book value.
	Other intangible assets acquired in a business combination are recognized at fair value using generally accepted valuation methods appropriate for the type of intangible asset and reported separately from goodwill. Intangible assets with definite lives are amortized over the estimated useful lives and are tested for impairment when events or circumstances occur that indicate that it is more likely than not that an impairment has occurred. The Company tests other intangible assets with definite lives for impairment by comparing the carrying amount to the sum of the net undiscounted cash flows expected to be generated by the asset whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. If the carrying amount of the asset exceeds its net undiscounted cash flows, then an impairment loss is recognized for the amount by which the carrying amount exceeds its fair value.
	(h)Fair Value of Financial Instruments
	At March 31, 2015 and 2014 the carrying amounts of certain of the Company's financial instruments, including cash and cash equivalents, accounts receivable, unbilled accounts receivable, restricted cash, accounts payable, accrued employee compensation and benefits and other accrued expenses, approximate their fair values due to the nature of the items. See note 7 for a discussion of the fair value of the Company's other financial instruments.
	(i)Concentration of Credit Risk and Significant Customers
	Financial instruments which potentially expose the Company to concentrations of credit risk are primarily comprised of cash and cash equivalents, investments, derivatives, accounts receivable and unbilled accounts receivable. The Company places its cash, investments and derivatives in highly-rated financial institutions. The Company adheres to a formal investment policy with the primary objective of preservation of principal, which contains credit rating minimums and diversification requirements. Management believes its credit policies reflect normal industry terms and business risk. The Company does not anticipate non-performance by the counterparties and, accordingly, does not require collateral.
	At March 31, 2015, two clients accounted for 13% and 10% respectively, of gross accounts receivable. At March 31, 2014, one client accounted for 10% of gross accounts receivable. Revenue from significant clients as a percentage of the Company's consolidated revenue was as follows:

			Year Ended
			March 31,
			2015			2014			2013
	Customer A			12	%		13	%		11	%
	Customer B			11	%		13	%		14	%

	(j)Property and Equipment
	Property and equipment are recorded at cost and depreciated over their estimated useful lives using the straight-line method. Leasehold improvements are amortized over the shorter of their lease term or the estimated useful life of the related asset. Upon retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is credited or charged to income. Repair and maintenance costs are expensed as incurred.
	(k)Long-Lived Assets
	The Company reviews the carrying value of its long-lived assets or asset groups with definite useful lives to be held and used for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying value of an asset to the future net undiscounted cash flows directly associated with the asset. If assets are considered to be impaired, the impairment recognized is the amount by which the carrying value exceeds the fair value of the asset. The Company uses a discounted cash flow approach or other methods, if appropriate, to assess fair value.
	Long-lived assets to be disposed of by sale are reported at the lower of carrying value or fair value less cost to sell and depreciation is ceased. Long-lived assets to be disposed of other than by sale are considered to be held and used until disposal.
	(l)Internally-Developed Software
	The Company capitalizes costs incurred during the application development stage, which include costs to design the software configuration and interfaces, coding, installation and testing. Costs incurred during the preliminary project stage, along with post-implementation stages of internal use computer software, are expensed as incurred. Capitalized development costs are typically amortized over the estimated life of the software, typically three to ten years, using the straight line method, beginning with the date that an asset is ready for its intended use. At March 31, 2015 and 2014, capitalized software development costs, which include software development work in progress, were approximately $7,302 and $5,603, respectively. These costs were recorded in property and equipment. For the fiscal years ended March 31, 2015, 2014 and 2013, amortization of capitalized software development costs amounted to approximately $706, $733 and $351, respectively.
	(m)Income Taxes
	Income taxes are accounted for using the asset and liability method whereby deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled.
	The calculation of the Company's tax liabilities involves dealing with uncertainties in the application of complex tax regulations in multiple jurisdictions. The Company records liabilities for estimated tax obligations in the United States and other tax jurisdictions in which it has operations (see note 12).
	(n)Revenue Recognition
	The Company derives its revenue from a variety of IT consulting, technology implementation and application outsourcing services. Contracts for these services have different terms and conditions based on the scope, deliverables, and complexity of the engagement which require management to make judgments and estimates in determining the overall cost to the customer. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements and volume discounts are recorded as a reduction of revenue over the contractual period as services are performed.
	Revenue on time-and-material contracts is recognized as the services are performed and amounts are earned. The Company considers amounts to be earned once evidence of an arrangement has been obtained, services are delivered, fees are fixed or determinable, and collectability is reasonably assured. For contracts with fees based on time-and-materials, the Company recognizes revenue over the period of performance.
	Revenue from fixed-price contracts is accounted for under the percentage-of-completion method. Under the percentage-of-completion method, management estimates the percentage of completion based upon efforts incurred as a percentage of the total estimated efforts for the specified engagement. When total cost estimates exceed revenue, the Company accrues for the estimated losses immediately. The use of the percentage-of-completion method requires significant judgment relative to estimating total contract revenue and efforts, including assumptions relative to the length of time to complete the project, the nature and complexity of the work to be performed, and anticipated changes in other engagement-related costs. The Company's analysis of these contracts also contemplates whether contracts should be combined or segmented. The Company combines closely related contracts when all the applicable criteria under U.S. GAAP are met. Similarly, The Company may segment a project, which may consist of a single contract or a group of contracts, with varying rates of profitability, only if all the applicable criteria under U.S. GAAP are met. Estimates of total contract revenue and efforts are continuously monitored during the term of the contract and are subject to revision as the contract progresses. When revisions in estimated contract revenue and efforts are determined, such adjustments are recorded in the period in which they are first identified.
	Revenue includes reimbursements of travel and out-of-pocket expenses, with equivalent amounts of expense recorded in costs of revenue, of $10,877, $5,921 and $7,001 for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.
	Any tax assessed by a governmental authority that is incurred as a result of a revenue transaction (e.g. sales tax) is excluded from revenue and reported on a net basis.
	(o)Costs of Revenue and Operating Expenses
	Costs of revenue consist principally of salaries, employee benefits and stock compensation expense, reimbursable and non-reimbursable travel costs, subcontractor fees, and immigration related expenses for IT professionals. Selling and marketing expenses are charged to operating expenses as incurred. Selling and marketing expenses are those expenses associated with promoting and selling the Company's services and include such items as sales and marketing personnel salaries, stock compensation expense and related fringe benefits, commissions, travel, and the cost of advertising and other promotional activities. Advertising and promotional expenses incurred were approximately $430, $255 and $204 for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.
	General and administrative expenses include other operating items such as officers' and administrative personnel salaries, stock compensation expense and related fringe benefits, legal and audit expenses, public company related expenses, insurance, provision for doubtful accounts, depreciation and amortization, including amortization of purchased intangibles and operating lease expenses.
	(p)Share-Based Compensation
	Share-based compensation cost is determined by estimating the fair value at the grant date of the Company's common stock using the Black-Scholes option pricing model, and expensing the total compensation cost on a straight line basis (net of estimated forfeitures) over the requisite employee service period. The allocation of total share-based compensation expense between costs of revenue and selling, general and administrative expenses were as follows:

			Year Ended March 31,
			2015			2014			2013
	Costs of revenue		$	1,121		$	912		$	718
	Selling, general and administrative expenses			9,977			7,254			5,158

	Total share-based compensation expense		$	11,098		$	8,166		$	5,876
	The fair value of each stock option is estimated on the date of grant using the Black-Scholes option pricing valuation model with the following assumptions:

			Year Ended March 31,
Weighted Average Fair Value Options Pricing Model Assumptions		2015			2014			2013
Risk-free interest rate			1.62	%		1.31	%		0.88	%
Expected term (in years)			5.02			5.60			6.15
Anticipated common stock volatility			42.59	%		52.31	%		62.53	%
Expected dividend yield			0	%		0	%		0	%
The risk-free interest rate assumptions are based on the interpolation of various U.S. Treasury bill rates in effect during the month in which stock option awards are granted. For the fiscal years ended March 31, 2015 and 2014 the Company's volatility assumption is based on the historical volatility rates of the Company's common stock from exchange traded shares over periods commensurate with the expected term of each grant. For the fiscal year ended March 31, 2013 the Company's volatility assumption is based on the historical volatility rates of the common stock of its publicly held peers over periods commensurate with the expected term of each grant.
The expected term of employee share-based awards represents the weighted average period of time that awards are expected to remain outstanding. The determination of the expected term of share-based awards assumes that employees' behavior is a function of the awards vested, contractual lives, and the extent to which the award is in the money. Accordingly, for the fiscal years ended March 31, 2015 and 2014, the expected term of our options is based on historical employee exercise patterns. For fiscal year ended March 31, 2013 the Company had elected to use the "simplified" method of determining the expected term or life of its share-based awards due to the Company's limited trading history. The fair value of restricted awards and deferred stock awards is determined based on the number of stock awards granted and the quoted price of our stock at date of grant.
As of March 31, 2015, there was $14,988 of total unrecognized compensation cost related to unvested stock options, restricted stock awards and deferred stock awards granted under the Company's Amended and Restated 2000 Option Plan and the Company's 2007 Stock Option and Incentive Plan (see note 11 for a more complete description of these plans). The unrecognized compensation cost is expected to be recognized over a remaining weighted average period of 1.59 years.
(q)Allowance for Doubtful Accounts
The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of clients to make required payments. The allowance for doubtful accounts is determined by evaluating the relative credit worthiness of each client, historical collections experience and other information, including the aging of the receivables. We evaluate the collectability of our accounts receivables on an on-going basis and write-off accounts when they are deemed to be uncollectible.
(r)Unbilled Accounts Receivable
Unbilled accounts receivable represent revenue on contracts to be billed, in subsequent periods, as per the terms of the related contracts.
(s)Recent Accounting Pronouncements
In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company on April 1, 2017. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.
In June 2014, the FASB issued ASU No. 2014-12—"Stock Compensation—Accounting for Share-Based Payments In some cases, the terms of an award may provide that a performance target that affects vesting could be achieved after an employee completes the requisite service period. That is, the employee would be eligible to vest in the award regardless of whether the employee is rendering service on the date the performance target is achieved. A performance target that affects vesting and that could be achieved after an employee's requisite service period shall be accounted for as a performance condition. As such, the performance target shall not be reflected in estimating the fair value of the award at the grant date. Compensation cost shall be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the period(s) for which the requisite service already has been rendered. If the performance target becomes probable of being achieved before the end of the requisite service period, the remaining unrecognized compensation cost for which requisite service has not yet been rendered shall be recognized prospectively over the remaining requisite service period. The total amount of compensation cost recognized during and after the requisite service period shall reflect the number of awards that are expected to vest and shall be adjusted to reflect those awards that ultimately vest. The requisite service period ends when the employee can cease rendering service and still be eligible to vest in the award if the performance target is achieved. As indicated in the definition of vest, the stated vesting period (which includes the period in which the performance target could be achieved) may differ from the requisite service period. The ASU is effective for annual and interim periods for fiscal years beginning on or after December 15, 2015. Entities can apply the amendment either a) prospectively to all awards granted or modified after the effective date or b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The ASU does not have an impact on the consolidated financial statements.

Earnings_per_Share

Earnings per Share	12 Months Ended
Earnings per Share	Mar. 31, 2015
Earnings per Share
Earnings per Share
	(3) Earnings per Share
	Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding for the period, and diluted earnings per share is computed by including the dilutive impact of common stock equivalents outstanding for the period in the denominator. Common stock equivalents include shares issuable upon the exercise of outstanding stock options, SARs, unvested restricted stock, net of shares assumed to have been purchased with the proceeds, using the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share for the periods set forth below:

		Year Ended March 31,
		2015		2014		2013
	Numerators:
	Net income available to common stockholders	$	42,446		34,375	$	28,398
	Denominators:
	Weighted average common shares outstanding		28,753,102		26,116,516		24,937,162
	Dilutive effect of employee stock options and unvested restricted stock awards		794,883		842,864		683,470
	Dilutive effect of stock appreciation rights		7,639		13,621		18,207

	Weighted average shares—diluted		29,555,624		26,973,001		25,638,839

	Basic earnings per share	$	1.48	$	1.32	$	1.14

	Diluted earnings per share	$	1.44	$	1.27	$	1.11

	During the fiscal years ended March 31, 2015, 2014, and 2013, unvested restricted stock and options to purchase 21,629, 29,766 and 450,299 shares of common stock, respectively, were excluded from the calculations of diluted earnings per share as their effect would have been anti-dilutive.

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Mar. 31, 2015
Acquisitions
Acquisitions
	(4) Acquisitions
	On November 1, 2013, the Company acquired substantially all of the business and assets of OSB pursuant to an asset purchase agreement dated November 1, 2013 (the "Asset Purchase Agreement") by and among OSB and the sole member of OSB. The acquisition of OSB extends the Company's service offerings to include a broader set of finance transformation services in the financial services and insurance domains, to existing and new clients, including service offerings targeted to enable clients to automate their finance and accounting processes, reporting capabilities, including SAP based capabilities, and regulatory compliance programs.
	The purchase price was $6,840 in cash. Ten percent of the purchase price was subject to a hold back by the Company for a period of 12 months as security for the sellers' indemnification obligations under the Asset Purchase Agreement. The purchase price is subject to adjustment after the closing of up to an additional $6,000 in earn-out consideration, in the aggregate, upon the achievement of certain revenue and operating margin targets for the five months ending March 31, 2014, the nine months ending December 31, 2014 and the twelve months ending December 31, 2015. The fair value of the contingent consideration at March 31, 2015 and March 31, 2014 was $2,432 and $4,042, respectively. During the fiscal year ended March 31, 2015, the Company paid $3,000 earn-out consideration to the sellers of OSB, which represents 100% achievement of the targets for the five months ending March 31, 2014 and the nine months ending December 31, 2014. Changes in fair value of the contingent consideration were $1,390 during the fiscal year ended March 31, 2015 and were recorded to selling, general and administrative expenses. During the fiscal year ended March 31, 2015, the Company paid $684 to OSB with respect to the hold back.
	Under the terms of the Asset Purchase Agreement, the Company agreed to offer employment to all of the employees of OSB, including certain key employees and the sole member of OSB.
	There are no material relationships between the Company or any of its affiliates and any of the parties to the Asset Purchase Agreement and related agreements, other than with respect to such agreements themselves.
	On January 2, 2014, Virtusa International B.V., a wholly owned subsidiary of the Company organized and formed in the Netherlands ("Virtusa BV"), acquired all of the outstanding shares of TradeTech, and its subsidiaries (together with TradeTech, the "TradeTech Group"), pursuant to a share purchase agreement dated as of January 2, 2014 (the "Share Purchase Agreement") by and among Virtusa BV and the shareholders of TradeTech (the "TradeTech Shareholders"). The acquisition is intended to expand the Company's position within the banking, financial services and insurance industries by increasing its asset management and treasury services domain and technology expertise, as well as expanding the Company's global presence into the Nordic countries.
	Under the terms of the Share Purchase Agreement, Virtusa BV acquired all the outstanding shares of TradeTech for $19,555 in cash, as well as up to $4,080 in earn-out consideration subject to the TradeTech Group's achievement of certain revenue and EBITA targets for the 12-month period ending December 31, 2014. At June 30, 2014, the Company determined that the earn-out consideration targets would not be achieved for the 12-month period ending December 31, 2014, resulting in a reduction of $1,833 in the fair value of the recorded earn-out liability for the fiscal year ended March 31, 2015. The fair value of the contingent consideration at March 31, 2015 and 2014 is $0 and $1,883, respectively. The reduction of the entire fair value of the earn-out consideration of $1,833 was recorded as a reduction to selling, general and administration expenses in the fiscal year ended March 31, 2015. Under the terms of the Share Purchase Agreement, 12.5% of the purchase price was also held back and placed into escrow by the Company for a period of 12 months as security for the indemnification obligations of the TradeTech Shareholders. The Company also agreed to issue an aggregate of up to $2,000 in deferred restricted stock awards from the Company's stock option and incentive plan, not to exceed an aggregate of 65,000 shares, to certain of these new TradeTech Group employees. The shares will be recognized as compensation cost over the requisite employee service period. The shares will vest annually over a five year period. During the fiscal year ended March 31, 2015, the Company released $1,976 to TradeTech with respect to the hold back.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
Goodwill and Intangible Assets	Mar. 31, 2015
Goodwill and Intangible Assets
Goodwill and Intangible Assets
	(5) Goodwill and Intangible Assets
	Goodwill:
	The Company has one reportable segment at March 31, 2015. The following are details of the changes in goodwill balance at March 31, 2015:

		Amount
	Balance at April 1, 2014	$	53,448
	Foreign currency translation adjustments		(3,088	)

	Balance at March 31, 2015	$	50,360

	The acquisition costs and goodwill balance deductible for our business acquisitions for tax purposes are $41,834. The acquisition costs and goodwill balance not deductible for tax purposes are $9,917 and relate to the Company's TradeTech acquisition.
	The Company performed the annual assessment of its goodwill during the fourth quarter of the fiscal year ended March 31, 2015 and determined that the estimated fair value of the Company's reporting unit exceeded its carrying value and therefore goodwill was not impaired. The Company will continue to complete goodwill impairment assessments at least annually during the fourth quarter of each ensuing fiscal year. The Company will continue to evaluate whether events or circumstances have occurred that indicate that the estimated remaining useful life of its long-lived assets, including intangible assets, may warrant revision or that the carrying value of these assets may be impaired. Any write downs are treated as permanent reductions in the carrying amount of the assets.
	Intangible Assets:
	The following are details of the Company's intangible asset carrying amounts acquired and amortization for the fiscal year ended March 31, 2015 and March 31, 2014:

		March 31, 2015
		Weighted			Gross		Accumulated		Net
		Average			Carrying		Amortization		Carrying
		Useful Life			Amount				Amount
	Amortizable intangible assets:
	Customer relationships		9.4		$	34,070	$	12,259	$	21,811
	Partner relationships		6.5			700		602		98
	Trademark		1.0			57		57		—
	Backlog		1.0			1,143		1,143		—

			9.0		$	35,970	$	14,061	$	21,909



		March 31, 2014
		Weighted			Gross		Accumulated		Net
		Average			Carrying		Amortization		Carrying
		Useful Life			Amount				Amount
	Amortizable intangible assets:
	Customer relationships		9.4		$	36,410	$	8,978	$	27,432
	Partner relationships		6.5			700		486		214
	Trademark		1.0			75		18		57
	Backlog		1.0			1,512		554		958

			9.0		$	38,697	$	10,036	$	28,661

	The Company's amortization expense related to intangible assets acquired through acquisitions was $4,436, $3,431 and $2,556 for the fiscal years ended March 31, 2015, 2014 and 2013, respectively. The components included in the gross carrying amounts of amortization expense in the table above reflect the Company's acquisition of all the outstanding stock of Insource Holdings, Inc. and its subsidiaries on November 4, 2009, the Company's purchase of substantially all of the assets of ConVista Consulting LLC, on February 1, 2010, the Company's purchase of substantially all of the assets of ALaS Consulting LLC, on July 1, 2011, the Company's purchase of substantially all of the assets of OSB on November 1, 2013 and the Company's acquisition of all the outstanding stock of TradeTech on January 2, 2014. The intangible assets are being amortized on either a straight-line basis or on an accelerated basis using the most appropriate economic pattern of consumption over their estimated useful lives.
	The estimated amortization expense related to the purchased intangible assets listed in the table above at March 31, 2015 is as follows for the following fiscal years:

	Fiscal year	Amount
	2016	$	3,828
	2017		3,732
	2018		3,455
	2019		2,460
	2020		2,453
	Thereafter		5,981

	Total	$	21,909

Investment_Securities

Investment Securities	12 Months Ended
Investment Securities	Mar. 31, 2015
Investment Securities
Investment Securities
	(6) Investment Securities
	At March 31, 2015 and 2014, all of the Company's investment securities were classified as available-for-sale and were carried on its balance sheet at their fair market value. A fair market value hierarchy based on three levels of inputs was used to measure each security (see note 7).
	The following is a summary of investment securities at March 31, 2015:

			Amortized			Gross			Gross			Fair Value
			Cost			Unrealized			Unrealized
						Gains			Losses
	Available-for-sale securities:
	Corporate bonds:
	Current		$	41,873		$	10		$	(22	)	$	41,861
	Non-current			10,551			—			(21	)		10,530
	Agency and short-term notes:
	Current			6,737			3			—			6,740
	Non-current			10,203			1			(2	)		10,202
	Municipal bonds:
	Current			200			—			—			200
	Time deposits:
	Current			41,613			—			—			41,613

	Total available-for-sale securities		$	111,177		$	14		$	(45	)	$	111,146

	The following is a summary of investment securities at March 31, 2014:

			Amortized			Gross			Gross			Fair Value
			Cost			Unrealized			Unrealized
						Gains			Losses
	Available-for-sale securities:
	Corporate bonds:
	Current		$	20,255		$	9		$	(8	)	$	20,256
	Non-current			50,264			5			(70	)		50,199
	Auction-rate securities:
	Non-current			300			—			(12	)		288
	Agency and short-term notes:
	Current			561			—			—			561
	Non-current			11,341			1			(14	)		11,328
	Commercial paper:
	Current			5,497			—			—			5,497
	Municipal bonds:
	Non-current			200			—			—			200
	Time deposits:
	Current			29,574			—			—			29,574

	Total available-for-sale securities		$	117,992		$	15		$	(104	)	$	117,903

	The Company evaluates investments with unrealized losses to determine if the losses are other than temporary. The Company has determined that the gross unrealized losses on its available-for-sale securities at March 31, 2015 are temporary. The Company conducts a periodic review and evaluation of its investment securities to determine if the decline in fair value of any security is deemed to be other-than-temporary. Other-than-temporary losses are reflected in earnings as a charge against gain on sale of investments to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income.
	The following tables show the gross unrealized losses and fair value of the Company's investment securities with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2015 and March 31, 2014:
	Less Than 12 Months

			Fair Value			Gross
						Unrealized
						Loss
	Available-for-sale securities at March 31, 2015:
	Corporate bonds		$	36,272		$	(41	)
	Agency bonds			5,001			(2	)

	Total		$	41,273		$	(43	)

	Available-for-sale securities at March 31, 2014:
	Corporate bonds		$	49,082		$	(78	)
	Agency bonds			9,802			(14	)

	Total		$	58,884		$	(92	)

Greater Than 12 Months

		Fair Value			Gross
					Unrealized
					Loss
Available-for-sale securities at March 31, 2015:
Corporate bonds		$	1,901			(2	)
Agency bonds			1,100			—

Total		$	3,001		$	(2	)

Available-for-sale securities at March 31, 2014:
Auction-rate securities			288			(12	)

Total		$	288		$	(12	)

At March 31, 2015, there were no investment securities owned by the Company for which the fair value was less than the carrying value for a period greater than 12 months.
Available-for-sale securities by contractual maturity were as follows:

		March 31,
		2015
Due in one year or less		$	90,414
Due after 1 year through 5 years			20,732
Due after 5 years			—

Total		$	111,146

Proceeds from sales of available-for-sale investment securities and the gross gains and losses that have been included in earnings as a result of those sales were as follows:

		Year Ended March 31,
		2015			2014			2013
Proceeds from sales of available-for-sale investment securities		$	52,308		$	11,602			13,975

Gross gains		$	6		$	—		$	—
Gross losses			(5	)		—			—

Net realized gains on sales of available-for-sale investment securities		$	1		$	—		$	—

The Company previously invested in auction-rate securities whose underlying assets are generally student loans which are substantially backed by the U.S. federal government. At March 31, 2015, the Company does not have any auction rate securities.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
Fair Value of Financial Instruments	Mar. 31, 2015
Fair Value of Financial Instruments
Fair Value of Financial Instruments
	(7) Fair Value of Financial Instruments
	The Company uses a framework for measuring fair value under U.S. generally accepted accounting principles and enhances disclosures about fair value measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The Company's financial assets and liabilities reflected in the consolidated financial statements at carrying value include marketable securities and other financial instruments which approximate fair value. Fair value for marketable securities is determined using a market approach based on quoted market prices at period end in active markets. The fair value hierarchy is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value which are the following:

		·		Level 1—Quoted prices in active markets for identical assets or liabilities.

		·		Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

		·		Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

	An entity is allowed to elect to record financial assets and financial liabilities at fair value upon their initial recognition on a contract- by-contract basis.
	The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis at March 31, 2015

			Level 1			Level 2		Level 3		Total
	Assets:
	Investments:
	Available-for-sales securities—current		$	—		$	90,414	$	—	$	90,414
	Available-for-sales securities—non-current			—			20,732		—		20,732
	Foreign currency derivative contracts			—			4,644		—		4,644

	Total assets		$	—		$	115,790	$	—	$	115,790
	Liabilities:
	Foreign currency derivative contracts		$	—		$	1,802	$	—	$	1,802
	Contingent consideration			—			—		2,432		2,432

	Total liabilities		$	—		$	1,802	$	2,432	$	4,234
	The following table provides a summary of changes in fair value of the Company's Level 3 financial assets at March 31, 2015:

			Level 3
			Assets
	Balance at April 1, 2014		$	288
	Auction-rate securities redeemed at par			(300	)
	Total gains reclassified out of other comprehensive income			12

	Balance at March 31, 2015		$	—

	The Company determines the fair value of the contingent consideration related to the Company's acquisitions of OSB and TradeTech based on the probability of attaining certain revenue and profit margin targets using an appropriate discount rate to present value the liability. See Note 4 of the notes to our financial statements included herein for a description of OSB and TradeTech acquisitions and related contingent consideration targets. The following table provides a summary of changes in fair value of the Company's Level 3 financial liabilities as of March 31, 2015.

			Level 3 Liabilities
	Balance at April 1, 2014		$	5,925
	Payment of OSB contingent consideration (See Note 4)			(3,000	)
	Reversal of the TradeTech earn-out recognized in earnings (See Note 4)			(1,833	)
	Increase of the OSB earn-out recognized in earnings (See Note 4)			1,390
	Foreign currency translation adjustments			(50	)

	Balance at March 31, 2015		$	2,432

Property_and_Equipment

Property and Equipment	12 Months Ended
Property and Equipment	Mar. 31, 2015
Property and Equipment
Property and Equipment
	(8) Property and Equipment
	Property and equipment and their estimated useful lives in years consist of the following:

			March 31,
		Estimated Useful	March 31,
		Life (Years)	2015		2014
	Computer and other equipment	3 - 5	$	27,513	$	25,623
	Furniture and fixtures	7		8,629		8,075
	Vehicles	3 - 5		1,041		740
	Software	3 - 10		16,255		12,796
	Leasehold improvements	Lesser of estimated useful life or lease term		5,418		4,686
	Buildings	15 - 30		11,563		11,853
	Land			320		331
	Capital work-in-progress			3,452		1,867

			$	74,191	$	65,971
	Less—accumulated depreciation and amortization			36,203		30,625

	Property and equipment, net		$	37,988	$	35,346

	Depreciation and amortization expense for the fiscal years ended March 31, 2015, 2014 and 2013 was $9,116, $8,071 and $6,484, respectively. Capital work-in-progress represents advances paid towards the acquisition of property and equipment, and the cost of property and equipment including internally developed software not placed in service before the balance sheet date. The cost and accumulated amortization of assets under capital leases at March 31, 2015 were $370 and $86, respectively. The cost and accumulated amortization of assets under capital leases at March 31, 2014 were $142 and $26, respectively.

Accrued_Expenses_and_Other

Accrued Expenses and Other	12 Months Ended
Accrued Expenses and Other	Mar. 31, 2015
Accrued Expenses and Other
Accrued Expenses and Other
	(9) Accrued Expenses and Other
	Accrued expenses and other consists of the following:

		March 31,		March 31,
		2015		2014
	Accrued other taxes	$	4,137	$	3,813
	Accrued professional fees		6,978		5,804
	Acquisition related liabilities		2,432		6,890
	Hedge liability		1,183		4,195
	Accrued discounts		3,867		2,261
	Accrued other		5,165		4,336

	Total	$	23,762	$	27,299

Debt

Debt	12 Months Ended
Debt	Mar. 31, 2015
Debt
Debt
	(10) Debt
	On December 31, 2013, the Company entered into an amended and restated credit agreement with JPMorgan Chase Bank, N.A. ("JPM"). The credit agreement amended and restated the Company's $3,000 secured revolving credit agreement with JPM and provides for a $25,000 secured revolving credit facility, which shall be available to fund working capital and other corporate purposes, as well as to serve as security in support of the Company's foreign currency hedging programs. The credit agreement contains financial covenants that require the Company to maintain a Funded Debt to Adjusted EBITDA Ratio of not more than 2.00 to 1.00 and a Fixed Charge Coverage Ratio of less than 2.50 to 1.00, each as determined for the trailing twelve month period ending on each fiscal quarter. The Company is currently in compliance with all covenants contained in the credit agreement and believes that the credit agreement provides sufficient flexibility to enable continued compliance with its terms. Interest under this credit facility accrues at a rate between LIBOR plus 1.5% and LIBOR plus 1.75% based on the Company's ratio of indebtedness to Adjusted EBITDA. The term of the credit facility is five years, ending December 31, 2018. This facility replaced the Company's prior $3,000 line of credit with JPM. At March 31, 2015, there were no borrowings outstanding under the credit facility
	Beginning in fiscal 2009, the Company's U.K. subsidiary entered into an agreement with an unrelated financial institution to sell, without recourse or continuing involvement, certain of its European-based accounts receivable balances from one client to such third party financial institution. During the course of the fiscal year ended March 31, 2015, $28,291 of receivables were sold under the terms of the financing agreement. Fees paid pursuant to this agreement were immaterial during the fiscal year ended March 31, 2015. No amounts were due as of March 31, 2015, but the Company may elect to use this program again in future periods. However, the Company cannot provide any assurances that this or any other financing facilities will be available or utilized in the future. The Company had no letters of credit outstanding at March 31, 2015 and 2014.

Stock_Options_Restricted_Stock

Stock Options, Restricted Stock Awards and Stock Appreciation Rights	12 Months Ended
	Mar. 31, 2015
Stock Options, Restricted Stock Awards and Stock Appreciation Rights
Stock Options, Restricted Stock Awards and Stock Appreciation Rights
	(11) Stock Options, Restricted Stock Awards and Stock Appreciation Rights
	The Company's Amended and Restated 2000 Stock Option Plan (the "2000 Plan") was adopted in the fiscal year ended March 31, 2001. Under the 2000 Plan, shares were reserved for issuance to the Company's employees, directors, and consultants. The 2000 Plan was amended over the years to reduce the number of shares reserved for issuance to a total of 11,630 as of March 31, 2015. Options granted under the 2000 Plan may be incentive stock options, nonqualified stock options or restricted stock. Incentive stock options may only be granted to employees. Options granted have a term of ten years and generally vest over four years. The Company settles employee stock option exercises with newly issued shares. The compensation committee of the board of directors determines (upon board of director approval) the term of awards on an individual case basis. The exercise price of incentive stock options shall be no less than 100% of the fair market value per share of the Company's common stock on the grant date. If an individual owns stock representing more than 10% of the outstanding shares, the price of each share shall be at least 110% of fair market value. In May 2007, the Company's board of directors determined that no further grants would be made under the 2000 Plan.
	In July 2005, the Company adopted the Virtusa Corporation 2005 Stock Appreciation Rights Plan (the "SAR Plan"). Under the SAR Plan, the Company may grant up to 479,233 SARs to employees and consultants of Virtusa and its foreign subsidiaries, and settles the SARs in cash or common stock, as set forth in the SAR Plan. Prior to the Company's initial public offering ("IPO"), the SARs could only be settled in cash. After the Company's IPO, the cash settlement feature of the SARs ceased and exercises may only be settled in shares of the Company's common stock. In May 2007, the Company's board of directors determined that no further grants would be made under the SAR Plan.
	The Company's board of directors and its stockholders approved the Company's 2007 Stock Option and Incentive Plan (the "2007 Plan"), in May 2007, and the stockholders of the Company again approved the 2007 Plan in September 2008. The 2007 Plan permits the Company to make grants of incentive stock options, non-qualified stock options, SARs, deferred stock awards, restricted stock awards, unrestricted stock awards, and dividend equivalent rights. The Company reserved 830,670 shares of its common stock for the issuance of awards under the 2007 Plan. The 2007 Plan provides that the number of shares reserved and available for issuance under the plan will be automatically increased each April 1, beginning in 2008, by 2.9% of the outstanding number of shares of common stock on the immediately preceding March 31 or such lower number of shares of common stock as determined by the board of directors. This number is subject to adjustment in the event of a stock split, stock dividend or other change in the Company's capitalization. Generally, shares that are forfeited, cancelled or withheld to settle tax liabilities from awards under the 2007 Plan also will be available for future awards. In addition, available shares under the 2000 Plan and the SAR Plan, as a result of the forfeiture, expiration, cancellation, termination or net issuances of awards, are automatically made available for issuance under the 2007 Plan. At March 31, 2015, the number of shares reserved for issuance under the 2007 Plan is 2,371,828.
	The following tables summarize stock option and restricted stock activity under the 2000 Plan and the 2007 Plan for the fiscal years ended March 31, 2015, 2014 and 2013:

			Number of			Weighted			Weighted			Aggregate
			Options			Average			Average			Intrinsic
			to Purchase			Exercise			Remaining			Value
			Common			Price			Life (in years)
			Shares
	Outstanding at March 31, 2012			1,587,324		$	9.97
	Granted			93,153			15.61
	Exercised			(267,575	)		8.22
	Forfeited or cancelled			(43,560	)		14.28

	Outstanding at March 31, 2013			1,369,342			10.56
	Granted			49,201			28.37
	Exercised			(321,577	)		8.11
	Forfeited or cancelled			(12,037	)		18

	Outstanding at March 31, 2014			1,084,929			12.01
	Granted			833			33.23
	Exercised			(269,384	)		8.56
	Forfeited or cancelled			(9,522	)		15.6

	Outstanding at March 31, 2015			806,856		$	13.15			4.94		$	22,781

	Exercisable at March 31, 2015			668,606		$	12.03			4.45		$	19,626



			Restricted Stock Award Activity
			Number of			Weighted Average
			Restricted			Grant date Fair Value
			Stock Awards
	Unvested at March 31, 2012			831,656		$	15.43
	Awarded			465,733			15.04
	Vested			(284,833	)		14.27
	Forfeited			(43,157	)		16.34

	Unvested at March 31, 2013			969,399			15.55
	Awarded			268,578			26.7
	Vested			(377,359	)		14.56
	Forfeited			(57,898	)		15.51

	Unvested at March 31, 2014			802,720			19.74
	Awarded			197,715			33.91
	Vested			(296,538	)		18.34
	Forfeited			(65,419	)		21.49

	Unvested at March 31, 2015			638,478		$	24.6



			Restricted Stock Unit Activity
			Number of			Weighted Average
			Restricted			Grant Date Fair Value
			Stock Units
	Unvested at March 31, 2012			49,416		$	16.59
	Awarded			—			—
	Vested			(12,354	)		16.59
	Forfeited			—			—

Unvested at March 31, 2013			37,062			16.59
Awarded			217,147			27.99
Vested			(19,875	)		20
Forfeited			—			—

Unvested at March 31, 2014			234,334			26.87
Awarded			264,579			33.18
Vested			(87,783	)		25.61
Forfeited			(6,333	)		33.91

Unvested at March 31, 2015			404,797		$	31.16

The aggregate intrinsic value of options exercised during the fiscal years ended March 31, 2015, 2014 and 2013 was $7,556, $6,304 and $2,873, respectively. The weighted average fair value of options granted during the fiscal year ended March 31, 2015, 2014 and 2013 was $13.04, $13.85 and $8.96, respectively. During the fiscal year ended March 31, 2015, 2014 and 2013 the Company realized $4,692, $3,198 and $759 respectively, of income tax benefits from the exercise of stock options as a windfall credit.
The tables below summarize information about the SAR Plan activity for the fiscal years ended March 31, 2015, 2014 and 2013 as follows:

		SAR Plan Activity
		Number of			Weighted			Weighted			Aggregate
		SARs			Average			Average			Intrinsic
					Exercise			Remaining			Value
					Price			Life (in years)
Outstanding at March 31, 2012			31,146			4.36
Granted			—			—
Exercised			(8,378	)		3.72
Forfeited or cancelled			(399	)		4.84

Outstanding at March 31, 2013			22,369			4.6
Granted			—			—
Exercised			(8,176	)		4.84
Forfeited or cancelled			(2,072	)		2.29

Outstanding at March 31, 2014			12,121			4.82
Granted			—			—
Exercised			(6,626	)		5.34
Forfeited or cancelled			(385	)		6.28

Outstanding and exercisable at March 31, 2015			5,110		$	4.04			1.22		$	191

The aggregate intrinsic value of SARs exercised during the fiscal years ended March 31, 2015, 2014 and 2013 was $216, $221 and $113, respectively.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Mar. 31, 2015
Income Taxes
Income Taxes
	(12) Income Taxes
	The income before income tax expense shown below is based on the geographic location to which such income is attributed for each of the fiscal years ended March 31, 2015, 2014 and 2013:

			Year Ended March 31,
			2015			2014			2013
	United States		$	15,734		$	10,876		$	7,471
	Foreign			41,666			35,048			28,388

	Total		$	57,400		$	45,924		$	35,859

	The provision for income taxes for each of the fiscal years ended March 31, 2015, 2014 and 2013 consisted of the following:

			Year Ended March 31,
			2015			2014			2013
	Current provision:
	Federal		$	8,217		$	2,973		$	3,390
	State			2,415			874			1,002
	Foreign			7,291			6,084			4,905

	Total current provision		$	17,923		$	9,931		$	9,297

	Deferred (benefit) provision:
	Federal		$	(2,066	)	$	1,173		$	(468	)
	State			(616	)		272			(146	)
	Foreign			(287	)		173			(1,222	)

	Total deferred (benefit) provision		$	(2,969	)	$	1,618		$	(1,836	)

	Total provision for income taxes		$	14,954		$	11,549		$	7,461

	The items which gave rise to differences between the income taxes in the statements of income and the income taxes computed at the U.S. statutory rate are summarized as follows:

			Year Ended March 31,
			2015			2014			2013
	Statutory tax rate			35	%		34	%		34	%
	U.S. state and local taxes, net of U.S. federal income tax effects			1.9			1.6			1.6
	Benefit from foreign subsidiaries' tax holidays			(8.8	)		(9.8	)		(15.7	)
	Foreign rate difference			(3.2	)		(2.2	)		0.1
	Permanent items			1.3			1.3			2.4
	Other adjustments			(0.1	)		0.2			(1.6	)

	Effective income tax rate			26.1	%		25.1	%		20.8	%

	Deferred tax assets (liabilities) at March 31, 2015 and 2014 were as follows:

			March 31,
			2015			2014
	Deferred revenue		$	309		$	154
	Bad debt reserve			261			291
	Tax credit carry forwards			3,861			3,983
	Accrued expenses and reserves			8,418			6,539
	Share-based compensation expense			3,151			3,298
	Intangibles			3,058			2,593
	Unrealized losses			—			1,610
	Net operating loss			1,046			73

	Total gross deferred tax assets		$	20,104		$	18,541

	Valuation allowance			(902	)		—

	Total deferred tax assets		$	19,202		$	18,541

	Depreciation			(1,050	)		(798	)
Unrealized gains			(409	)		—
Acquisition and other liabilities			(4,212	)		(6,231	)
Goodwill			(3,585	)		(2,995	)

Total deferred tax liabilities		$	(9,256	)	$	(10,024	)

Net deferred tax assets/liabilities		$	9,946		$	8,517

At March 31, 2015 and 2014, all current and long-term deferred tax liabilities are offset against the current and long-term deferred tax assets and recorded on a net basis by tax jurisdiction.
The ultimate realization of deferred tax assets is dependent upon management's assessment of the Company's ability to generate sufficient taxable income to realize the deferred tax assets during the periods in which the temporary differences become deductible. Management considers the historical level of taxable income, projections for future taxable income, and tax planning strategies in making this assessment. The Company assessed the available positive and negative evidence to estimate if sufficient future taxable income will be generated to realize the existing deferred tax assets. As of March 31, 2015, the Company determined it is more likely than not that a portion of the Netherlands net operating losses ("NOL") will not be realized and concluded that a partial valuation allowance was required. The Company recorded increases to the valuation allowance totaling $902 during the fiscal year ended March 31, 2015, of which $73 was recorded in income tax expense and $829 in other comprehensive loss. The Company has determined for all other deferred assets that it is more likely than not that the results of future operations will generate sufficient taxable income to realize the deferred tax assets.
At March 31, 2015, the Company has $252 of US foreign tax credits which begin to expire in March 2022, $3,609 of Indian Minimum Alternative Tax ("MAT") credits which begin to expire at various dates through 2025 and $1,046 of foreign NOL, with indefinite life. The Company has determined that it is more likely than not that the results of future operations will generate sufficient taxable income to realize the deferred tax assets.
During the fiscal year ended March 31, 2015, the Company recorded $2,026 of net income tax expense directly in other comprehensive income related to the unrealized gain/loss on available for sale securities, the unrealized gain/loss on effective cash flow hedges and the foreign currency loss on certain long-term intercompany balances. During the fiscal year ended March 31, 2015, the Company recognized $4,692 of net income tax benefit directly in additional paid in capital related to net excess tax benefits of share-based compensation.
The Company created two export oriented units in India, one in Bangalore during the fiscal year ended March 31, 2011 and a second unit in Hyderabad (Special Economic Zone or "SEZ") during the fiscal year ended March 31, 2010 for which no income tax exemptions were availed. The Indian subsidiaries also operate two development centers in areas designated as a SEZ, under the SEZ Act of 2005. In particular, the Company was approved as an SEZ Co-developer and has built a campus on a 6.3 acre parcel of land in Hyderabad, India that has been designated as an SEZ. As an SEZ Co-developer, the Company is entitled to certain tax benefits for any consecutive period of 10 years during the 15 year period starting in fiscal year 2008. The Company has elected to claim SEZ Co-developer income tax benefits starting in fiscal year ended March 31, 2013. In addition, the Company has leased facilities in SEZ designated locations in Hyderabad and Chennai, India. The Company's profits from the Hyderabad and Chennai SEZ operations are eligible for certain income tax exemptions for a period of up to 15 years beginning in fiscal March 31, 2009. Our India profits ineligible for SEZ benefits are subject to corporate income tax at the current rate of 33.99%. In the fiscal year ended March 31, 2014, the Company leased a facility in SEZ designated location in Bangalore and Pune, India each of which is eligible for tax holidays for up to 15 years beginning in the fiscal year ended March 31, 2014. Based on the latest changes in tax laws, book profits of SEZ units are subject to MAT, commencing April 1, 2011, which will continue to negatively impact the Company's cash flows.
In addition, the Company's Sri Lankan subsidiary, Virtusa (Private) Limited, is operating under a 12-year income tax holiday arrangement that is set to expire on March 31, 2019 and required Virtusa (Private) Limited to meet certain job creation and investment criteria by March 31, 2015. During the fiscal year ended March 2015, the Company believes it has fulfilled its hiring and investment commitments and is eligible for tax holiday through March 2019. The current agreement provides income tax exemption for all export business income. The Company has submitted the required support to the Board of Investment and is awaiting confirmation. At March 31, 2015, the Company believes it is eligible for the entire 12-year tax holiday.
The India and Sri Lanka income tax holidays reduced the overall tax provision and increased both net income and diluted earnings per share in the fiscal years ended March 31, 2015, 2014 and 2013 by $5,048, $4,513 and $5,647, respectively, and by $0.17, $0.17 and $0.22, respectively. As of March 31, 2015, two SEZ tax holidays in Chennai and Hyderabad, India are subject to a partial expiration of fifty percent of their tax benefits. The partial expiration of SEZ tax holidays in Chennai and Hyderabad, respectively, negatively impacted net income and diluted earnings per share in the fiscal year ended March 31, 2015, by $830 and $1,195, and by $0.03 and $0.04, respectively.
The Company intends to indefinitely reinvest all of its accumulated and future foreign earnings outside the United States. At March 31, 2015, the Company had $193,268 of unremitted earnings from foreign subsidiaries and approximately $99,155 of cash and short-term investments that would otherwise be available for potential distribution, if not indefinitely reinvested. Due to the various methods by which such earnings could be repatriated in the future, the amount of taxes attributable to the undistributed earnings are dependent on circumstances existing if and when remittance occurs and is not practically determinable.
Due to the geographical scope of the Company's operations, the Company is subject to tax examinations in various jurisdictions. The Company's ongoing assessments of the more-likely-than-not outcomes of these examinations and related tax positions require judgment and can increase or decrease the Company's effective tax rate, as well as impact the Company's operating results. The specific timing of when the resolution of each tax position will be reached is uncertain. The Company does not believe that the outcome of any ongoing examination will have a material effect on its consolidated financial statements within the next twelve months. The Company's major taxing jurisdictions include the United States, the United Kingdom, India and Sri Lanka. In the United States, the Company remains subject to examination for all tax years ended after March 31, 2012. In the foreign jurisdictions, the Company generally remains subject to examination for tax years ended after March 31, 2005.
Each fiscal year, unrecognized tax benefits may be adjusted upon the closing of the statute of limitations for income tax returns filed in various jurisdictions. The total amount of unrecognized tax benefits that would reduce income tax expense and the effective income tax rate, if recognized, is $546, $410 and $512 as of March 31, 2015, 2014 and 2013, respectively. Although it would be difficult to anticipate the final outcome on timing of resolution of any particular uncertain tax position, the Company anticipates that $109 of unrecognized tax benefits will reverse during the twelve month period ending March 31, 2016 due to settlement or expiration of statute of limitations on open tax years. All of these benefits are expected to have an impact on the effective tax rate as they are realized.
The following summarizes the activity related to the gross unrecognized tax benefits:

		Year Ended March 31,
		2015			2014			2013
Balance as of beginning of the fiscal year		$	410		$	4,823		$	5,957
Foreign currency translation related to prior year tax positions			(3	)		(32	)		—
Decreases related to prior year tax positions			—			(208	)		(499	)
Decreases related to prior year tax positions due to settlements or lapse in applicable statute of limitations			(94	)		(4,311	)		(947	)
Increases related to prior year tax positions			233			138			312

Balance at end of the fiscal year		$	546		$	410		$	4,823



The Company continues to classify accrued interest and penalties related to unrecognized tax benefits in income tax expense. During the fiscal years ended March 31, 2015 and 2014, the Company expensed accrued interest and penalties of $55 and $62, respectively, through income tax expense consistent with its prior positions, to reflect interest and penalties on certain unrecognized tax benefits as part of income tax. The total accrued interest and penalties, including foreign currency translation relating to certain foreign and domestic tax matters at March 31, 2015 and 2014, were $360 and $324, respectively. During the fiscal year ended March 31, 2015, the Company's unrecognized tax benefits increased by $136. The increase in the unrecognized tax benefits during the fiscal year ended March 31, 2015 was primarily related to a certain tax exposures related to tax returns where the statute of limitations has not yet expired. The net movement in unrecognized tax benefits for the fiscal year ended March 31, 2015 was as follows: $183 recorded in the income tax expense, offset by $44 of cash payments for settlement of prior uncertain tax positions and $3 to other comprehensive income ("OCI") for foreign currency impact.
The Company has been under income tax examination in India. The Indian taxing authorities issued an assessment order with respect to their examination of the various tax returns for the fiscal years ended March 31, 2005 to March 31, 2012 of the Company's Indian subsidiary, Virtusa (India) Private Ltd, now merged with and into Virtusa Consulting Services Private Limited (collectively referred to as "Virtusa India"). At issue were several matters, the most significant of which was the redetermination of the arm's-length profit which should be recorded by Virtusa India on the intercompany transactions with its affiliates. During the fiscal year ended March 31, 2011, the Company entered into a competent authority settlement and settled the uncertain tax position for the fiscal years ended March 31, 2004 and 2005. However, the redetermination of arm's-length profit on transactions with respect to the Company's subsidiaries and Virtusa UK Limited has not been resolved and remains under appeal for the fiscal year ended March 31, 2005. The Company is currently appealing assessments for fiscal years ended March 31, 2005 through 2012.

Postretirement_Benefits

Post-retirement Benefits	12 Months Ended
Post-retirement Benefits	Mar. 31, 2015
Post-retirement Benefits
Post-retirement Benefits
	(13) Post-retirement Benefits
	The Company has noncontributory defined benefit plans (the "Benefit Plans") covering its employees in India and Sri Lanka as mandated by the Indian and Sri Lankan governments. Benefits are based on the employee's years of service and compensation at the time of termination. The Company uses March 31 as the measurement date for its plans.
	Cost of pension plans

			Year Ended March 31,
			2015			2014			2013
	Components of net periodic pension expense
	Expected return on plan assets		$	(214	)	$	(210	)	$	(188	)
	Service costs for benefits earned			564			527			452
	Interest cost on projected benefit obligation			233			205			179
	Amortization of prior service cost			10			10			11
	Recognized net actuarial loss			114			90			92

	Net periodic pension expense		$	707		$	622		$	546

	Actuarial assumptions

			Year Ended March 31,
			2015		2014		2013
	Discount rate		7.80% - 10.00%		8.00% - 11.5%		8.00% - 12.25%
	Compensation increases (annual)		7.00% - 7.50%		7.00% - 7.50%		7.00% - 7.50%
	Expected return on assets		8.50% - 12.52%		8.50% - 12.25%		8.50% - 13.13%
	The discount rate is based upon high quality fixed income investments in India and Sri Lanka. The discount rates at March 31, 2015 were used to measure the year-end benefit obligations and the pension cost for the subsequent year.
	To determine the expected long-term rate of return on pension plan assets, the Company considers the current and expected asset allocations, as well as historical and expected returns on various categories of plan assets. The Company amortizes unrecognized actuarial gains or losses over a period no longer than the average future service of employees.
	The Company's benefit obligations are described in the following tables. Accumulated and projected benefit obligations ("ABO" and "PBO", respectively) represent the obligations of a pension plan for past service as of the measurement date. ABO is the present value of benefits earned to date with benefits computed based on current compensation levels. PBO is ABO increased to reflect expected future compensation.
	Accumulated benefit obligation and projected benefit obligation

			As of March 31,
			2015			2014
	Accumulated benefit obligation		$	2,393		$	1,939

	Projected benefit obligation:
	Beginning balance		$	2,758		$	2,580
	Service cost			564			527
	Interest cost			233			205
	Actuarial (gain) loss			535			(25	)
	Benefits paid			(391	)		(352	)
	Exchange rate adjustments			(95	)		(177	)

	Ending balance		$	3,604		$	2,758

	Fair value of plan assets

			Plan assets
	Balance at April 1, 2014		$	2,822
	Employer contributions			447
	Actual gain on plan assets			265
	Benefits paid			(391	)
	Exchange rate adjustments			(89	)

	Balance at March 31, 2015		$	3,054

	At March 31, 2015, India and Sri Lanka together had $550 of net projected benefit obligation recorded in the consolidated balance sheets as "accrued employee compensation and benefits". At March 31, 2014, India had $258 of excess funding recorded in the consolidated balance sheets as "other long-term assets" and Sri Lanka had $194 of net projected benefit obligation recorded in the consolidated balance sheets as "accrued employee compensation and benefits".
	Plan asset allocation

			March 31, 2015
			Target		Actual
			Allocation		Allocation
	Government securities		50% - 60%			52	%
	Corporate debt		30% - 50%			47	%
	Other		1% - 20%			1	%
	The Company's plan assets are being managed by insurance companies in India and Sri Lanka.
	Plan Assets
The following table presents the fair values of the Company's pension plan assets.

		Fair Value Measurements
Asset Category		Total			Quoted Prices in			Significant
					Active Markets for			Observable
					Identical Assets			Inputs
					(Level 1)			(Level 2)
At March 31, 2015
Government Bonds(1)		$	1,382		$	—		$	1,382
Corporate Bonds(2)			1,062			—			1,062
Equity Shares and Others(3)			610			185			425

		$	3,054		$	185		$	2,869

At March 31, 2014
Government Bonds(1)		$	1,166		$	—		$	1,166
Corporate Bonds(2)			1,059			—			1,059
Equity Shares and Others(3)			597			185			412

		$	2,822		$	185		$	2,637



	-1		This category comprises government fixed income investments with investments in India and Sri Lanka.

	-2		This category represents investment in bonds and debentures from diverse industries.

	-3		This category represents equity shares, money market investments and other investments.
The fair values of the government bonds are measured based on market quotes. Corporate bonds and other bonds are valued based on market quotes as of the balance sheet date. Equity share funds are valued at their market prices as of the balance sheet date. Money market funds are valued at their market price.
Pension liability

		March 31,
		2015			2014
PBO		$	3,604		$	2,758
Fair value of plan assets			3,054			2,822

Funded status recognized		$	550		$	(64	)
Amount recorded in accumulated other comprehensive income		$	932		$	578

The amount in accumulated other comprehensive income (loss) that is expected to be recognized as a component of net periodic benefit cost over the fiscal year ended March 31, 2016 is $163. The Company expects to contribute $1,000 to its gratuity plans during the fiscal year ending March 31, 2016.
The pretax amounts of prior service cost and actuarial gain (loss) recognized from accumulated other comprehensive income consists of:

		March 31,
		2015			2014			2013
Prior service cost		$	(10	)	$	(10	)	$	(10	)
Net amortization gain (loss)			(114	)		(90	)		82

Total		$	(124	)	$	(100	)	$	72

Estimated future benefits payments

Fiscal year ending March 31:
2016		$	775
2017			702
2018			785
2019			1,267
2020			1,001
2021 - 2025			6,802

401k_Plan

401(k) Plan	12 Months Ended
401(k) Plan	Mar. 31, 2015
401(k) Plan
401(k) Plan
	(14) 401(k) Plan
	The Company sponsors a defined contribution retirement savings plan, qualified under Section 401(k) of the Internal Revenue Code (the "401(k) Plan"). Eligible employees may defer a portion of their compensation into the Company's 401(k) Plan on a pre-tax and/or Roth basis. The Company's 401(k) Plan currently offers a safe harbor match feature that provides Company matching contributions for certain employee contributions. For the fiscal periods ended March 31, 2015 and 2014, the Company recorded $740 and $746 for the employer match, respectively. The Company's 401(k) Plan may be amended at the discretion of the Company's board of directors to discontinue the safe harbor match program at any time.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Loss	12 Months Ended
Accumulated Other Comprehensive Loss	Mar. 31, 2015
Accumulated Other Comprehensive Loss:
Accumulated Other Comprehensive Loss
	(15) Accumulated Other Comprehensive Loss
	The changes in the components of accumulated other comprehensive loss were as follows:

		March 31,
		2015			2014			2013
	Investment securities
	Beginning balance	$	(54	)	$	(3	)	$	(8	)
	Other comprehensive income (loss) (OCI) before reclassifications, net of tax of $21, $(28), $0		36			(51	)		5
	Reclassifications from OCI to other income, net of tax of $0 for all periods		—			—			—

	Comprehensive income (loss) on investment securities, net of tax of $21, $(28), $0		36			(51	)		5

	Closing Balance	$	(18	)	$	(54	)	$	(3	)

	Currency translation adjustments
	Beginning balance	$	(23,253	)	$	(16,918	)	$	(13,109	)
	Recognized in OCI		(12,312	)		(6,335	)		(3,809	)

	Closing balance	$	(35,565	)	$	(23,253	)	$	(16,918	)

	Cash flow hedges
	Cash flow hedges
	Beginning balance	$	(3,829	)	$	(1,013	)	$	(4,524	)
	OCI before reclassifications net of tax of $1,511, $(2,993), $(954)		5,169			(7,291	)		(1,210	)
	Reclassifications from OCI to
	—Costs of revenue, net of tax of $321, $1,377, $1,578		659			2,793			3,030
	—Selling, general and administrative expenses, net of tax of $185, $831, $882		388			1,682			1,691

	Comprehensive income (loss) on cash flow hedges, net of tax of $2,017, $(785), $1,506		6,216			(2,816	)		3,511

	Closing balance	$	2,387		$	(3,829	)	$	(1,013	)

	Benefit plans
	Beginning balance	$	(578	)	$	(780	)	$	(702	)
	OCI before reclassifications net of tax of $(16), $0, $0		(477	)		37			(175	)
	Reclassifications from OCI for prior service credit (cost) to:
	—Costs of revenue, net of tax of $2,$0,$0		66			71			56
	—Selling, general and administrative expenses, net of tax of $2, $0, $0		45			19			37
	Reclassifications from OCI for net actuarial gain (loss) amortization to:

	—Costs of revenue, net of tax of $0 for all periods		8			8			6
	—Selling, general and administrative expenses, net of tax of $0 for all periods		2			2			4
	Other adjustments		2			65			(6	)

	Comprehensive income (loss) on benefit plans, net of tax of $(12), $0, $0		(354	)		202			(78	)

	Closing balance	$	(932	)	$	(578	)	$	(780	)

	Accumulated other comprehensive income (loss)	$	(34,128	)	$	(27,714	)	$	(18,714	)

Commitments_Contingencies_and_

Commitments, Contingencies and Guarantees	12 Months Ended
Commitments, Contingencies and Guarantees	Mar. 31, 2015
Commitments, Contingencies and Guarantees
Commitments, Contingencies and Guarantees
	(16) Commitments, Contingencies and Guarantees
	The Company leases office space under operating leases, which expire at various dates through fiscal year 2023. Certain leases contain renewal provisions and generally require the Company to pay utilities, insurance, taxes, and other operating expenses.
	Future minimum lease payments under non-cancelable leases for the five fiscal years following March 31, 2015 and thereafter are:

		Operating		Capital
		Leases		Leases
	Fiscal year ending March 31:
	2016	$	7,502	$	118
	2017		7,308		115
	2018		5,358		58
	2019		2,031		12
	2020		1,280		—
	2021 and thereafter		1,325		—

	Total minimum lease payments	$	24,804	$	303



	Less: amount representing interest				47

	Present value of future lease payments			$	256
	Less: current portion				91

	Long term capital lease obligation			$	165



	Total rental expense for operating leases was approximately $8,015, $6,535 and $5,367 for the fiscal years ended March 31, 2015, 2014 and 2013, respectively. Total amortization expenses for the assets purchased under capital leases were $77, $17 and $6 for the fiscal year ended March 31, 2015, 2014 and 2013 respectively.
	The Company indemnifies its officers and directors for certain events or occurrences under its charter or by-laws and under indemnification agreements while the officer or director is, or was, serving at its request in a defined capacity. The term of the indemnification period is with respect to the period that such person was an officer or director of the Company. The maximum potential amount of future payments the Company could be required to make under these indemnification obligations is unlimited. The costs incurred to defend lawsuits or settle claims related to these indemnification obligations have not been material. As a result, the Company believes that its estimated exposure on these obligations is minimal. Accordingly, the Company had no liabilities recorded for these obligations as of March 31, 2015.
	The Company is insured against any actual or alleged act, error, omission, neglect, misstatement or misleading statement or breach of duty by any current or former officer, director or employee while rendering information technology services. The Company believes that its financial exposure from such actual or alleged actions, should they arise, is minimal and no liability was recorded at March 31, 2015.
	The Company is not a party to any pending litigation or other legal proceedings that are likely to have a material adverse effect on its consolidated financial statements.

Derivative_Financial_Instrumen

Derivative Financial Instruments and Trading Activities	12 Months Ended
Derivative Financial Instruments and Trading Activities	Mar. 31, 2015
Derivative Financial Instruments and Trading Activities
Derivative Financial Instruments
	(17) Derivative Financial Instruments and Trading Activities
	The Company evaluates its foreign exchange policy on an ongoing basis to assess its ability to address foreign exchange exposures on its consolidated balance sheets, statements of income and consolidated statement of cash flows from all foreign currencies, including most significantly the U.K. pound sterling, the euro, Indian rupee and Sri Lankan rupee. The Company enters into hedging programs with highly rated financial institutions in accordance with its foreign exchange policy (as approved by the Company's audit committee and board of directors) which permits hedging of material, known foreign currency exposures. Currently, the Company maintains three hedging programs, each with varying contract types, duration and purposes. The Company's "Cash Flow Program" is designed to mitigate the impact of volatility in the U.S. dollar equivalent of the Company's Indian rupee denominated expenses over a rolling 36-month period. The Cash Flow Program transactions currently meet the criteria for hedge accounting as cash flow hedges. The Company's "Balance Sheet Program" involves the use of 30-day derivative instruments designed to mitigate the monthly impact of foreign exchange gains/losses on certain intercompany balances and payments. The Company's "Economic Hedge Program" involves the purchase of derivative instruments with maturities of up to 92 days, and is designed to mitigate the impact of foreign exchange on U.K. pound sterling, the euro and Swedish krona denominated revenue and costs with respect to the quarter for which such instruments are purchased. The Balance Sheet Program and the Economic Hedge Program are treated as economic hedges as these programs do not meet the criteria for hedge accounting and all gains and losses are recognized in consolidated statement of income under the same line item as the underlying exposure being hedged.
	Changes in fair value of the designated cash flow hedges for our Cash Flow Program are recorded as a component of accumulated other comprehensive income (loss) ("AOCI"), net of tax until the forecasted hedged transactions occur and are then recognized in the consolidated statements of income in the same line item as the item being hedged. The Company evaluates hedge effectiveness at the time a contract is entered into, as well as on an ongoing basis. If and when hedge relationships are discontinued, and should the forecasted transaction be deemed probable of not occurring by the end of the originally specified period or within an additional two-month period of time thereafter, any related derivative amounts recorded in equity are reclassified to earnings in other income (expense). There were no amounts reclassified to earnings as a result of hedge ineffectiveness for the fiscal years ended March 31, 2015 or 2014.
	Changes in the fair value of the hedges for the Balance Sheet Program and the Economic Hedge Program, if any, are recognized in the same line item as the underlying exposure being hedged and the ineffective portion of cash flow hedges, if any, is recognized as other income (expense). The Company values its derivatives based on market observable inputs including both forward and spot prices for currencies. Any significant change in the forward or spot prices for hedged currencies would have a significant impact on the value of the Company's derivatives.
	The U.S. dollar equivalent market value, which consists of the notional value and net unrealized gain or loss, of all outstanding foreign currency derivative contracts was $121,380 and $102,801 at March 31, 2015 and 2014, respectively. Unrealized net gains related to these contracts which are expected to be reclassified from AOCI to earnings during the next 12 months are $2,102 at March 31, 2015. At March 31, 2015, the maximum outstanding term of any derivative instrument was 33 months.
	The following tables set forth the fair value of derivative instruments included in the consolidated balance sheets at March 31, 2015 and March 31, 2014:
	Derivatives designated as hedging instruments

		March 31, 2015			March 31, 2014
	Foreign currency exchange contracts:
	Other current assets	$	3,285		$	398
	Other long-term assets	$	1,359		$	586
	Accrued expenses and others	$	1,183		$	3,925
	Long-term liabilities	$	619		$	2,449
	The following tables set forth the effect of the Company's foreign currency exchange contracts on the consolidated financial statements of the Company for the fiscal years ended March 31, 2015 and 2014:

		Amount of Gain or (Loss)
		Recognized in AOCI on
		Derivatives (Effective Portion)
	Derivatives Designated as	March 31, 2015			March 31, 2014
	Cash Flow Hedging Relationships	March 31, 2015			March 31, 2014
	Foreign currency exchange contracts	$	6,680		$	(10,284	)


		Amount of Gain or (Loss)
		Reclassified from AOCI into
		Income (Effective Portion)
	Location of Gain or (Loss) Reclassified	March 31, 2015			March 31, 2014
	from AOCI into Income (Effective Portion)	March 31, 2015			March 31, 2014
	Costs of revenue	$	(980	)	$	(4,170	)
	Operating expenses	$	(573	)	$	(2,513	)


				Amount of Gain or (Loss)
				Recognized in Income
				on Derivatives
	Derivatives not Designated	Location of Gain Or (Loss)		March 31, 2015			March 31, 2014
	as Hedging Instruments	Recognized in Income on Derivatives		March 31, 2015			March 31, 2014
	Foreign currency exchange contracts	Foreign currency transaction gains (losses)		$	66		$	(2,388	)
		Revenue		$	(389	)	$	(847	)
		Costs of revenue		$	(279	)	$	343
		Selling, general and administrative expenses		$	(93	)	$	50

Business_Segment_Information

Business Segment Information	12 Months Ended
Business Segment Information	Mar. 31, 2015
Business Segment Information
Business Segment Information
	(18) Business Segment Information
	Accounting pronouncements establish standards for the manner in which public companies report information about operating segments in annual and interim financial statements. Operating segments are component of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision-maker on deciding on how to allocate resources and in assessing performance. The Company's chief operating decision-maker is considered to be the Company's Chief Executive Officer. The Company's Chief Executive Officer reviews financial information presented on an entity level basis for purposes of making operating decisions and assessing financial performance. Therefore, the Company has determined that it operates in a single operating and reportable segment.
	Geographic information:
	Total revenue is attributed to geographic areas based on location of the client. Geographic information is summarized as follows:

		Year Ended March 31,
		2015		2014		2013
	Customer revenue:
	North America	$	319,285	$	278,318	$	251,219
	Europe		129,904		97,178		65,863
	Other		29,797		21,437		16,093

	Consolidated revenue	$	478,986	$	396,933	$	333,175



		March 31,
		2015		2014
	Long-lived assets, net of accumulated depreciation and amortization:
	North America	$	59,316	$	61,562
	Asia		32,896		32,235
	Europe		18,045		23,658

	Consolidated long-lived assets, net	$	110,257	$	117,455

Quarterly_Results_of_Operation

Quarterly Results of Operations (unaudited)	12 Months Ended
Quarterly Results of Operations (unaudited)	Mar. 31, 2015
Quarterly Results of Operations (unaudited)
Quarterly Results of Operations (unaudited)
	(19) Quarterly Results of Operations (unaudited)

		Three Months Ended
		March 31,		December 31,		September 30,		June 30,		March 31,		December 31,		September 30,		June 30,
		2015		2014		2014		2014		2014		2013		2013		2013
	Revenue	$	126,016	$	122,996	$	117,700	$	112,274	$	111,100	$	101,043	$	94,301	$	90,489
	Costs of revenue		79,722		77,144		74,968		72,588		68,407		63,821		60,503		57,802

	Gross profit		46,294		45,852		42,732		39,686		42,693		37,222		33,798		32,687
	Operating expenses		31,816		31,233		30,491		28,456		30,182		26,026		24,022		23,758

	Income from operations		14,478		14,619		12,241		11,230		12,511		11,196		9,776		8,929
	Other income		1,221		1,360		1,257		994		1,116		1,155		105		1,136

	Income before income tax expense		15,699		15,979		13,498		12,224		13,627		12,351		9,881		10,065
	Income tax expense		4,149		4,200		3,384		3,221		3,580		3,023		2,403		2,543

	Net income	$	11,550	$	11,779	$	10,114	$	9,003	$	10,047	$	9,328	$	7,478	$	7,522

	Basic earnings per share	$	0.40	$	0.41	$	0.35	$	0.32	$	0.36	$	0.36	$	0.29	$	0.30
	Diluted earnings per share	$	0.39	$	0.40	$	0.34	$	0.31	$	0.35	$	0.35	$	0.28	$	0.29

Subsequent_Events

Subsequent Events	12 Months Ended
Subsequent Events	Mar. 31, 2015
Subsequent Events
Subsequent Events
	(20) Subsequent Events
	On April 1, 2015, Virtusa Corporation (the "Company") entered into a Stock Purchase Agreement (the "Stock Purchase Agreement") by and among the Company, Apparatus, Inc. an Indiana corporation ("Apparatus"), the majority stockholder of Apparatus ("Major Stockholder") and the other stockholders (collectively with the Major Stockholder, the "Sellers"), to acquire all of the issued and outstanding stock of Apparatus (the "Acquisition"). The Company also completed the Acquisition on April 1, 2015, and Apparatus is now a wholly-owned subsidiary of the Company.
	Under the terms of the Stock Purchase Agreement, the purchase price for the Acquisition was approximately $34,200 in cash, subject to post-closing working capital adjustments. The purchase price is also subject to adjustment after the closing by up to an additional $1,700 in earn-out consideration to the Sellers, and an additional payment of approximately $1,500 ("Bonus Pool") in the form of variable cash compensation to certain Apparatus employees, in each case, in the event of Apparatus' achievement at 100% of certain revenue and profit milestones for the fiscal year ending March 31, 2016. The Company deposited 8.5% of the purchase price into escrow for a period of 12 months as security for the Sellers' indemnification obligations under the Stock Purchase Agreement. The Company, Sellers and Apparatus made customary representations, warranties and covenants in the Stock Purchase Agreement. The Stock Purchase Agreement also contains non-solicitation and non-competition provisions pursuant to which the Sellers agreed not to solicit any employee or affiliate or client of the Company and, in the case of the Major Stockholder, to also not engage in any competitive business or activities, in each case, for a period of three years after the date of closing of the transaction.
	In connection with the Acquisition, the Company offered employment to all of Apparatus' employees. In addition to the Bonus Pool, the Company has also agreed to issue an aggregate of up to $3,500 in shares of restricted stock from the Company's 2007 Stock Option and Incentive, not to exceed 93,333 shares, to certain Apparatus employees. The shares will vest annually over a four year period.
	On April 24, 2015, the Company purchased multiple foreign currency forward contracts designed to hedge fluctuation in the U.K. pound sterling against the U.S. dollar. The contracts have an aggregate notional amount of approximately £2,961 (approximately $4,470) and will expire on various dates through June 30, 2015. The weighted average U.S. dollar settlement rate associated with the U.K. pound sterling contracts is approximately $1.51.
	On May 7, 2015, the Company purchased multiple foreign currency forward contracts designed to hedge fluctuation in the Swedish Krona ("SEK") against the U.S. dollar and the Euro ("EUR") against the U.S. dollar (the "Euro contracts"), each of which will expire on various dates during the period ending June 30, 2015. The SEK contracts have an aggregate notional amount of approximately SEK 4,341 (approximately $527) and the EUR contracts have an aggregate notional amount of approximately EUR 675 (approximately $757). The weighted average U.S. dollar settlement rate associated with the SEK contracts is approximately $0.121, and the weighted average U.S. dollar settlement rate associated with the EUR contracts is approximately $1.121.
	On May 7, 2015, the Company purchased multiple foreign currency forward contracts designed to hedge fluctuation in the Indian rupee against the U.S. dollar and U.K. pound sterling. The U.S dollar contracts have an aggregate notional amount of approximately 884,253 Indian rupees (approximately $12,824) and have an average settlement rate of 69.21 Indian rupees. The U.K. pound sterling contracts have an aggregate notional amount of approximately 662,388 Indian rupees (approximately £6,295) and have an average settlement rate of 105.44 Indian rupees. These contracts will expire at various dates during the 36 month period ending on March 31, 2018. The Company will be obligated to settle these contracts based upon the Reserve Bank of India published Indian rupee exchange rates. Based on the U.S. dollar to U.K. pound sterling spot rate on May 7, 2015 of $1.52, the blended weighted average Indian rupee rate associated with both the U.S. dollar and U.K. pound sterling contracts would be approximately 69.05 Indian rupees per U.S. dollar.
	On May 8, 2015, the Company purchased multiple foreign currency forward contracts designed to hedge fluctuation in the U.K. pound sterling against the U.S. dollar. The contracts have an aggregate notional amount of approximately £1,902 (approximately $2,915) and will expire on various dates through June 30, 2015. The weighted average U.S. dollar settlement rate associated with the U.K. pound sterling contracts is approximately $1.53.

Schedule_IIValuation_and_Quali

Schedule II-Valuation and Qualifying Accounts	12 Months Ended
	Mar. 31, 2015
Schedule II-Valuation and Qualifying Accounts
Schedule II-Valuation and Qualifying Accounts
	Schedule II—Valuation and Qualifying Accounts
	For the years ended March 31, 2015, 2014, and 2013

	Description	Balance at		Charged to			Deductions/			Balance at
		Beginning		Costs and			Other			End of
		of Period		Expenses						Period
		(In thousands)
	Accounts receivable allowance for doubtful accounts:
	Year ended March 31, 2013	$	582	$	193		$	(35	)	$	740
	Year ended March 31, 2014	$	740	$	539		$	(149	)	$	1,130
	Year ended March 31, 2015	$	1,130	$	(134	)	$	(115	)	$	881

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 31, 2015
Summary of Significant Accounting Policies
Principles of Consolidation
	(a)Principles of Consolidation
	The consolidated financial statements reflect the accounts of the Company and its direct and indirect subsidiaries, Virtusa Consulting Services Private Limited, Virtusa Software Services Private Limited and Virtusa Technologies (India) Private Limited, each organized and located in India, Virtusa (Private) Limited, organized and located in Sri Lanka, Virtusa UK Limited, organized and located in the United Kingdom, Virtusa Securities Corporation, a Massachusetts securities corporation, Virtusa International, B.V., organized and located in the Netherlands, Virtusa Hungary Kft., incorporated and located in Hungary, Virtusa Germany GmbH, organized and located in Germany, Virtusa Switzerland GmbH, organized and located in Switzerland, Virtusa Singapore Private Limited, organized and located in Singapore, Virtusa Malaysia Private Limited Company located in Malayisa, Virtusa Austria GmbH, organized and located in Austria, Virtusa Philippines Inc. located in the Philippines, TradeTech Consulting Scandinavia AB located in Sweden and Virtusa Canada, Inc., a corporation organized under the laws of British Columbia, Canada. All intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates
	(b)Use of Estimates
	The preparation of financial statements in accordance with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, including the recoverability of tangible assets, disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenue and expenses during the reported period. Management re-evaluates these estimates on an ongoing basis. The most significant estimates relate to the recognition of revenue and profits based on the percentage of completion method of accounting for fixed-price contracts, share-based compensation, income taxes, including reserves for uncertain tax positions, deferred taxes and liabilities, intangible assets, contingent consideration and valuation of financial instruments including derivative contracts and investments. Management bases its estimates on historical experience and on various other factors and assumptions that are believed to be reasonable under the circumstances. The actual amounts may vary from the estimates used in the preparation of the accompanying consolidated financial statements.

Foreign Currency Translation
	(c)Foreign Currency Translation
	The functional currencies of the Company's non-U.S. subsidiaries are the local currency of the country in which the subsidiary operates except for Hungary, which operates in the euro. Operating and capital expenditures of the Company's subsidiaries located in India, Sri Lanka, the Netherlands, Singapore, Malaysia, the Philippines, Germany, Austria, Sweden and the United Kingdom, are denominated in their local currency which is the currency most compatible with their expected economic results. India and Sri Lanka local expenditures form the underlying basis for intercompany transactions which are subsequently conducted in both U.S. dollars and U.K. pounds sterling. U.K. client sales contracts are primarily conducted in U.K. pounds sterling.
	All transactions and account balances are recorded in the functional currency. The Company translates the value of these non-U.S. subsidiaries' local currency denominated assets and liabilities into U.S. dollars at the rates in effect at the balance sheet date. Resulting translation adjustments are recorded in stockholders' equity as a component of accumulated other comprehensive income (loss). The local currency denominated statement of income amounts are translated into U.S. dollars using the average exchange rates in effect during the period. Realized foreign currency transaction gains and losses are included in the consolidated statements of income. The Company's non-U.S. subsidiaries do not operate in "highly inflationary" countries.

Derivative Instruments and Hedging Activities
	(d)Derivative Instruments and Hedging Activities
	The Company enters into forward foreign exchange contracts to mitigate the risk of changes in foreign exchange rates on intercompany transactions and forecasted transactions denominated in foreign currencies. The Company designates derivative contracts as cash flow hedges if they satisfy the criteria for hedge accounting. Changes in fair values of derivatives designated as cash flow hedges are deferred and recorded as a component of accumulated other comprehensive income, net of taxes, until the hedged transactions occur and are then recognized in the consolidated statements of income. Changes in fair value of derivatives not designated as hedging instruments and the ineffective portion of derivatives designated as cash flow hedges are recognized immediately in the consolidated statements of income.
	With respect to derivatives designated as cash flow hedges, the Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking various hedge transactions. The Company also formally assesses both at the inception of the hedge and on an ongoing basis, whether each derivative will be highly effective in offsetting changes in fair values or cash flows of the hedged item. If the Company determines that a derivative or a portion thereof is not highly effective as a hedge, or if a derivative ceases to qualify for hedge accounting, the Company prospectively discontinues hedge accounting with respect to that derivative.

Cash and Cash Equivalents and Restricted Cash
	(e)Cash and Cash Equivalents and Restricted Cash
	The Company considers all highly liquid investments with a remaining maturity of three months or less from the date of purchase to be cash equivalents. At March 31, 2015, cash equivalents consisted of money market instruments and certificates of deposit. The Company had short-term and long-term restricted cash totaling $112 and $2,755 at March 31, 2015 and 2014, respectively. During the fiscal year March 31, 2015 the Company released $684 and $1,976 which were held back related to the acquisition of OSB Consulting LLC ("OSB") and TradeTech Consulting Scandinavia AB ("TradeTech"), respectively. Restricted cash also includes restricted deposits with banks to secure the import of computer and other equipment, bank guarantees associated with the construction of the Company's facility in India and Sri Lanka.

Investment Securities
	(f)Investment Securities
	The Company classifies all debt securities as "available for sale". These securities are classified as short-term investments and long-term investments on the consolidated balance sheet and are carried at fair market value. Any unrealized gains and losses on available for sale securities are reported in accumulated other comprehensive income, net of tax, as a separate component of stockholders' equity unless the decline in value is deemed to be other-than-temporary, in which case, investments are written down to fair value and the loss is charged to the consolidated statement of income. Any realized gains and losses on trading securities are charged to the consolidated statement of income. The Company determines the cost of the securities sold based on the specific identification method.
	The Company conducts a periodic review and evaluation of its investment securities to determine if the decline in fair value of any security is deemed to be other-than-temporary. Other-than-temporary impairment losses are recognized on securities when: (i) the holder has an intention to sell the security; (ii) it is more likely than not that the security will be required to be sold prior to recovery; or (iii) the holder does not expect to recover the entire amortized cost basis of the security. Other-than-temporary losses are reflected in earnings as a charge against gain on sale of investments to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. The Company has no intention to sell any securities in an unrealized loss position at March 31, 2015 nor is it more likely than not that the Company would be required to sell such securities prior to the recovery of the unrealized losses. At March 31, 2015, the Company believes that all impairments of investment securities are temporary in nature.

Goodwill and Other Intangible Assets
	(g)Goodwill and Other Intangible Assets
	The Company accounts for its business combinations under the acquisition method of accounting. The Company allocates the cost of an acquired entity to the assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. The excess of the purchase price for acquisitions over the fair value of the net assets acquired, including other intangible assets, is recorded as goodwill. Goodwill is not amortized but is tested for impairment at the reporting unit level, defined as the Company level, at least annually in the fourth quarter of each fiscal year or more frequently when events or circumstances occur that indicate that it is more likely than not that an impairment has occurred. In assessing goodwill for impairment, an entity has the option to assess qualitative factors to determine whether events or circumstances indicate that it is not more likely than not that fair value of a reporting unit is less than its carry amount. If this is the case, then performing the quantitative two-step goodwill impairment test is unnecessary. An entity can choose not to perform a qualitative assessment for any or all of its reporting units, and proceed directly to the use of the two-step impairment test. The two-step process begins with an estimation of the fair value of a reporting unit. Goodwill impairment exists when a reporting unit's carrying value of goodwill exceeds its implied fair value. Significant judgment is applied when goodwill is assessed for impairment.
	For the Company's goodwill impairment analysis, the Company operates under one reporting unit. Any impairment would be measured based upon the fair value of the related assets. In performing the first step of the goodwill impairment testing and measurement process, the Company compares its entity-wide estimated fair value to net book value to identify potential impairment. Management estimates the entity-wide fair value utilizing the Company's market capitalization, plus an appropriate control premium. Market capitalization is determined by multiplying the shares outstanding on the assessment date by the market price of the Company's common stock. If the market capitalization is not sufficiently in excess of the Company's book value, the Company will calculate the control premium which considers appropriate industry, market and other pertinent factors. If the fair value of the reporting unit is less than the book value, the second step is performed to determine if goodwill is impaired. If the Company determines through the impairment evaluation process that goodwill has been impaired, an impairment charge would be recorded in the consolidated statement of income. The Company completed the annual impairment test required during the fourth quarter of the fiscal year ended March 31, 2015 and determined that there was no impairment. The Company continues to closely monitor its market capitalization. If the Company's market capitalization, plus an estimated control premium, is below its carrying value for a period considered to be other-than-temporary, it is possible that the Company may be required to record an impairment of goodwill either as a result of the annual assessment that the Company conducts in the fourth quarter of each fiscal year, or in a future quarter if an indication of potential impairment is evident. The estimated fair value of the reporting unit on the assessment date significantly exceeded the carrying book value.
	Other intangible assets acquired in a business combination are recognized at fair value using generally accepted valuation methods appropriate for the type of intangible asset and reported separately from goodwill. Intangible assets with definite lives are amortized over the estimated useful lives and are tested for impairment when events or circumstances occur that indicate that it is more likely than not that an impairment has occurred. The Company tests other intangible assets with definite lives for impairment by comparing the carrying amount to the sum of the net undiscounted cash flows expected to be generated by the asset whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. If the carrying amount of the asset exceeds its net undiscounted cash flows, then an impairment loss is recognized for the amount by which the carrying amount exceeds its fair value.

Fair Value of Financial Instruments
	(h)Fair Value of Financial Instruments
	At March 31, 2015 and 2014 the carrying amounts of certain of the Company's financial instruments, including cash and cash equivalents, accounts receivable, unbilled accounts receivable, restricted cash, accounts payable, accrued employee compensation and benefits and other accrued expenses, approximate their fair values due to the nature of the items. See note 7 for a discussion of the fair value of the Company's other financial instruments.

Concentration of Credit Risk and Significant Customers
	(i)Concentration of Credit Risk and Significant Customers
	Financial instruments which potentially expose the Company to concentrations of credit risk are primarily comprised of cash and cash equivalents, investments, derivatives, accounts receivable and unbilled accounts receivable. The Company places its cash, investments and derivatives in highly-rated financial institutions. The Company adheres to a formal investment policy with the primary objective of preservation of principal, which contains credit rating minimums and diversification requirements. Management believes its credit policies reflect normal industry terms and business risk. The Company does not anticipate non-performance by the counterparties and, accordingly, does not require collateral.
	At March 31, 2015, two clients accounted for 13% and 10% respectively, of gross accounts receivable. At March 31, 2014, one client accounted for 10% of gross accounts receivable. Revenue from significant clients as a percentage of the Company's consolidated revenue was as follows:

		Year Ended
		March 31,
		2015			2014			2013
	Customer A		12	%		13	%		11	%
	Customer B		11	%		13	%		14	%


Property and Equipment
	(j)Property and Equipment
	Property and equipment are recorded at cost and depreciated over their estimated useful lives using the straight-line method. Leasehold improvements are amortized over the shorter of their lease term or the estimated useful life of the related asset. Upon retirement or sale, the cost of assets disposed of and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is credited or charged to income. Repair and maintenance costs are expensed as incurred.

Long-Lived Assets
	(k)Long-Lived Assets
	The Company reviews the carrying value of its long-lived assets or asset groups with definite useful lives to be held and used for impairment whenever events or changes in circumstances indicate that the carrying value of these assets may not be recoverable. Recoverability of these assets is measured by a comparison of the carrying value of an asset to the future net undiscounted cash flows directly associated with the asset. If assets are considered to be impaired, the impairment recognized is the amount by which the carrying value exceeds the fair value of the asset. The Company uses a discounted cash flow approach or other methods, if appropriate, to assess fair value.
	Long-lived assets to be disposed of by sale are reported at the lower of carrying value or fair value less cost to sell and depreciation is ceased. Long-lived assets to be disposed of other than by sale are considered to be held and used until disposal.

Internally-Developed Software
	(l)Internally-Developed Software
	The Company capitalizes costs incurred during the application development stage, which include costs to design the software configuration and interfaces, coding, installation and testing. Costs incurred during the preliminary project stage, along with post-implementation stages of internal use computer software, are expensed as incurred. Capitalized development costs are typically amortized over the estimated life of the software, typically three to ten years, using the straight line method, beginning with the date that an asset is ready for its intended use. At March 31, 2015 and 2014, capitalized software development costs, which include software development work in progress, were approximately $7,302 and $5,603, respectively. These costs were recorded in property and equipment. For the fiscal years ended March 31, 2015, 2014 and 2013, amortization of capitalized software development costs amounted to approximately $706, $733 and $351, respectively.

Income Taxes
	(m)Income Taxes
	Income taxes are accounted for using the asset and liability method whereby deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled.
	The calculation of the Company's tax liabilities involves dealing with uncertainties in the application of complex tax regulations in multiple jurisdictions. The Company records liabilities for estimated tax obligations in the United States and other tax jurisdictions in which it has operations (see note 12).

Revenue Recognition
	(n)Revenue Recognition
	The Company derives its revenue from a variety of IT consulting, technology implementation and application outsourcing services. Contracts for these services have different terms and conditions based on the scope, deliverables, and complexity of the engagement which require management to make judgments and estimates in determining the overall cost to the customer. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements and volume discounts are recorded as a reduction of revenue over the contractual period as services are performed.
	Revenue on time-and-material contracts is recognized as the services are performed and amounts are earned. The Company considers amounts to be earned once evidence of an arrangement has been obtained, services are delivered, fees are fixed or determinable, and collectability is reasonably assured. For contracts with fees based on time-and-materials, the Company recognizes revenue over the period of performance.
	Revenue from fixed-price contracts is accounted for under the percentage-of-completion method. Under the percentage-of-completion method, management estimates the percentage of completion based upon efforts incurred as a percentage of the total estimated efforts for the specified engagement. When total cost estimates exceed revenue, the Company accrues for the estimated losses immediately. The use of the percentage-of-completion method requires significant judgment relative to estimating total contract revenue and efforts, including assumptions relative to the length of time to complete the project, the nature and complexity of the work to be performed, and anticipated changes in other engagement-related costs. The Company's analysis of these contracts also contemplates whether contracts should be combined or segmented. The Company combines closely related contracts when all the applicable criteria under U.S. GAAP are met. Similarly, The Company may segment a project, which may consist of a single contract or a group of contracts, with varying rates of profitability, only if all the applicable criteria under U.S. GAAP are met. Estimates of total contract revenue and efforts are continuously monitored during the term of the contract and are subject to revision as the contract progresses. When revisions in estimated contract revenue and efforts are determined, such adjustments are recorded in the period in which they are first identified.
	Revenue includes reimbursements of travel and out-of-pocket expenses, with equivalent amounts of expense recorded in costs of revenue, of $10,877, $5,921 and $7,001 for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.
	Any tax assessed by a governmental authority that is incurred as a result of a revenue transaction (e.g. sales tax) is excluded from revenue and reported on a net basis.

Costs of Revenue and Operating Expenses
	(o)Costs of Revenue and Operating Expenses
	Costs of revenue consist principally of salaries, employee benefits and stock compensation expense, reimbursable and non-reimbursable travel costs, subcontractor fees, and immigration related expenses for IT professionals. Selling and marketing expenses are charged to operating expenses as incurred. Selling and marketing expenses are those expenses associated with promoting and selling the Company's services and include such items as sales and marketing personnel salaries, stock compensation expense and related fringe benefits, commissions, travel, and the cost of advertising and other promotional activities. Advertising and promotional expenses incurred were approximately $430, $255 and $204 for the fiscal years ended March 31, 2015, 2014 and 2013, respectively.
	General and administrative expenses include other operating items such as officers' and administrative personnel salaries, stock compensation expense and related fringe benefits, legal and audit expenses, public company related expenses, insurance, provision for doubtful accounts, depreciation and amortization, including amortization of purchased intangibles and operating lease expenses.

Share-Based Compensation
	(p)Share-Based Compensation
	Share-based compensation cost is determined by estimating the fair value at the grant date of the Company's common stock using the Black-Scholes option pricing model, and expensing the total compensation cost on a straight line basis (net of estimated forfeitures) over the requisite employee service period. The allocation of total share-based compensation expense between costs of revenue and selling, general and administrative expenses were as follows:

		Year Ended March 31,
		2015			2014			2013
	Costs of revenue	$	1,121		$	912		$	718
	Selling, general and administrative expenses		9,977			7,254			5,158

	Total share-based compensation expense	$	11,098		$	8,166		$	5,876
	The fair value of each stock option is estimated on the date of grant using the Black-Scholes option pricing valuation model with the following assumptions:

		Year Ended March 31,
	Weighted Average Fair Value Options Pricing Model Assumptions	2015			2014			2013
	Risk-free interest rate		1.62	%		1.31	%		0.88	%
	Expected term (in years)		5.02			5.60			6.15
	Anticipated common stock volatility		42.59	%		52.31	%		62.53	%
	Expected dividend yield		0	%		0	%		0	%
	The risk-free interest rate assumptions are based on the interpolation of various U.S. Treasury bill rates in effect during the month in which stock option awards are granted. For the fiscal years ended March 31, 2015 and 2014 the Company's volatility assumption is based on the historical volatility rates of the Company's common stock from exchange traded shares over periods commensurate with the expected term of each grant. For the fiscal year ended March 31, 2013 the Company's volatility assumption is based on the historical volatility rates of the common stock of its publicly held peers over periods commensurate with the expected term of each grant.
	The expected term of employee share-based awards represents the weighted average period of time that awards are expected to remain outstanding. The determination of the expected term of share-based awards assumes that employees' behavior is a function of the awards vested, contractual lives, and the extent to which the award is in the money. Accordingly, for the fiscal years ended March 31, 2015 and 2014, the expected term of our options is based on historical employee exercise patterns. For fiscal year ended March 31, 2013 the Company had elected to use the "simplified" method of determining the expected term or life of its share-based awards due to the Company's limited trading history. The fair value of restricted awards and deferred stock awards is determined based on the number of stock awards granted and the quoted price of our stock at date of grant.
	As of March 31, 2015, there was $14,988 of total unrecognized compensation cost related to unvested stock options, restricted stock awards and deferred stock awards granted under the Company's Amended and Restated 2000 Option Plan and the Company's 2007 Stock Option and Incentive Plan (see note 11 for a more complete description of these plans). The unrecognized compensation cost is expected to be recognized over a remaining weighted average period of 1.59 years.

Allowance for Doubtful Accounts
	(q)Allowance for Doubtful Accounts
	The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of clients to make required payments. The allowance for doubtful accounts is determined by evaluating the relative credit worthiness of each client, historical collections experience and other information, including the aging of the receivables. We evaluate the collectability of our accounts receivables on an on-going basis and write-off accounts when they are deemed to be uncollectible.

Unbilled Accounts Receivable
	(r)Unbilled Accounts Receivable
	Unbilled accounts receivable represent revenue on contracts to be billed, in subsequent periods, as per the terms of the related contracts.

Recent Accounting Pronouncements
	(s)Recent Accounting Pronouncements
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. The new standard is effective for the Company on April 1, 2017. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.
	In June 2014, the FASB issued ASU No. 2014-12—"Stock Compensation—Accounting for Share-Based Payments In some cases, the terms of an award may provide that a performance target that affects vesting could be achieved after an employee completes the requisite service period. That is, the employee would be eligible to vest in the award regardless of whether the employee is rendering service on the date the performance target is achieved. A performance target that affects vesting and that could be achieved after an employee's requisite service period shall be accounted for as a performance condition. As such, the performance target shall not be reflected in estimating the fair value of the award at the grant date. Compensation cost shall be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the period(s) for which the requisite service already has been rendered. If the performance target becomes probable of being achieved before the end of the requisite service period, the remaining unrecognized compensation cost for which requisite service has not yet been rendered shall be recognized prospectively over the remaining requisite service period. The total amount of compensation cost recognized during and after the requisite service period shall reflect the number of awards that are expected to vest and shall be adjusted to reflect those awards that ultimately vest. The requisite service period ends when the employee can cease rendering service and still be eligible to vest in the award if the performance target is achieved. As indicated in the definition of vest, the stated vesting period (which includes the period in which the performance target could be achieved) may differ from the requisite service period. The ASU is effective for annual and interim periods for fiscal years beginning on or after December 15, 2015. Entities can apply the amendment either a) prospectively to all awards granted or modified after the effective date or b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The ASU does not have an impact on the consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
Summary of Significant Accounting Policies (Tables)	Mar. 31, 2015
Summary of Significant Accounting Policies
Schedule of revenue from significant clients as a percentage of consolidated revenue

		Year Ended
		March 31,
		2015			2014			2013
	Customer A		12	%		13	%		11	%
	Customer B		11	%		13	%		14	%


Schedule of allocation of share based compensation expense between costs of revenue and selling, general and administrative expenses

		Year Ended March 31,
		2015			2014			2013
	Costs of revenue	$	1,121		$	912		$	718
	Selling, general and administrative expenses		9,977			7,254			5,158

	Total share-based compensation expense	$	11,098		$	8,166		$	5,876


Schedule of weighted average fair value options pricing model assumptions

		Year Ended March 31,
	Weighted Average Fair Value Options Pricing Model Assumptions	2015			2014			2013
	Risk-free interest rate		1.62	%		1.31	%		0.88	%
	Expected term (in years)		5.02			5.60			6.15
	Anticipated common stock volatility		42.59	%		52.31	%		62.53	%
	Expected dividend yield		0	%		0	%		0	%

Earnings_per_Share_Tables

Earnings per Share (Tables)	12 Months Ended
Earnings per Share (Tables)	Mar. 31, 2015
Earnings per Share
Schedule of computation of basic and diluted earnings per share

		Year Ended March 31,
		2015		2014		2013
	Numerators:
	Net income available to common stockholders	$	42,446		34,375	$	28,398
	Denominators:
	Weighted average common shares outstanding		28,753,102		26,116,516		24,937,162
	Dilutive effect of employee stock options and unvested restricted stock awards		794,883		842,864		683,470
	Dilutive effect of stock appreciation rights		7,639		13,621		18,207

	Weighted average shares—diluted		29,555,624		26,973,001		25,638,839

	Basic earnings per share	$	1.48	$	1.32	$	1.14

	Diluted earnings per share	$	1.44	$	1.27	$	1.11

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
Goodwill and Intangible Assets (Tables)	Mar. 31, 2015
Goodwill and Intangible Assets
Schedule of changes in goodwill

		Amount
	Balance at April 1, 2014	$	53,448
	Foreign currency translation adjustments		(3,088	)

	Balance at March 31, 2015	$	50,360



Schedule of carrying amount and amortization of acquired intangible asset

		March 31, 2015
		Weighted			Gross		Accumulated		Net
		Average			Carrying		Amortization		Carrying
		Useful Life			Amount				Amount
	Amortizable intangible assets:
	Customer relationships		9.4		$	34,070	$	12,259	$	21,811
	Partner relationships		6.5			700		602		98
	Trademark		1.0			57		57		—
	Backlog		1.0			1,143		1,143		—

			9.0		$	35,970	$	14,061	$	21,909



		March 31, 2014
		Weighted			Gross		Accumulated		Net
		Average			Carrying		Amortization		Carrying
		Useful Life			Amount				Amount
	Amortizable intangible assets:
	Customer relationships		9.4		$	36,410	$	8,978	$	27,432
	Partner relationships		6.5			700		486		214
	Trademark		1.0			75		18		57
	Backlog		1.0			1,512		554		958

			9.0		$	38,697	$	10,036	$	28,661



Schedule of estimated amortization expense related to the purchased intangible assets
	The estimated amortization expense related to the purchased intangible assets listed in the table above at March 31, 2015 is as follows for the following fiscal years:

	Fiscal year	Amount
	2016	$	3,828
	2017		3,732
	2018		3,455
	2019		2,460
	2020		2,453
	Thereafter		5,981

	Total	$	21,909

Investment_Securities_Tables

Investment Securities (Tables)	12 Months Ended
Investment Securities (Tables)	Mar. 31, 2015
Investment Securities
Schedule of investment securities
	The following is a summary of investment securities at March 31, 2015:

		Amortized			Gross			Gross			Fair Value
		Cost			Unrealized			Unrealized
					Gains			Losses
	Available-for-sale securities:
	Corporate bonds:
	Current	$	41,873		$	10		$	(22	)	$	41,861
	Non-current		10,551			—			(21	)		10,530
	Agency and short-term notes:
	Current		6,737			3			—			6,740
	Non-current		10,203			1			(2	)		10,202
	Municipal bonds:
	Current		200			—			—			200
	Time deposits:
	Current		41,613			—			—			41,613

	Total available-for-sale securities	$	111,177		$	14		$	(45	)	$	111,146

	The following is a summary of investment securities at March 31, 2014:

		Amortized			Gross			Gross			Fair Value
		Cost			Unrealized			Unrealized
					Gains			Losses
	Available-for-sale securities:
	Corporate bonds:
	Current	$	20,255		$	9		$	(8	)	$	20,256
	Non-current		50,264			5			(70	)		50,199
	Auction-rate securities:
	Non-current		300			—			(12	)		288
	Agency and short-term notes:
	Current		561			—			—			561
	Non-current		11,341			1			(14	)		11,328
	Commercial paper:
	Current		5,497			—			—			5,497
	Municipal bonds:
	Non-current		200			—			—			200
	Time deposits:
	Current		29,574			—			—			29,574

	Total available-for-sale securities	$	117,992		$	15		$	(104	)	$	117,903



Schedule of gross unrealized losses and fair value of the Company's investment securities with unrealized losses that are not deemed to be other-than-temporarily impaired
	Less Than 12 Months

		Fair Value			Gross
					Unrealized
					Loss
	Available-for-sale securities at March 31, 2015:
	Corporate bonds	$	36,272		$	(41	)
	Agency bonds		5,001			(2	)

	Total	$	41,273		$	(43	)

	Available-for-sale securities at March 31, 2014:
	Corporate bonds	$	49,082		$	(78	)
	Agency bonds		9,802			(14	)

	Total	$	58,884		$	(92	)

	Greater Than 12 Months

		Fair Value			Gross
					Unrealized
					Loss
	Available-for-sale securities at March 31, 2015:
	Corporate bonds	$	1,901			(2	)
	Agency bonds		1,100			—

	Total	$	3,001		$	(2	)

	Available-for-sale securities at March 31, 2014:
	Auction-rate securities		288			(12	)

	Total	$	288		$	(12	)



Schedule of available-for-sale securities by contractual maturity

		March 31,
		2015
	Due in one year or less	$	90,414
	Due after 1 year through 5 years		20,732
	Due after 5 years		—

	Total	$	111,146





Schedule of proceeds from sale of available-for-sale investment securities

		Year Ended March 31,
		2015			2014			2013
	Proceeds from sales of available-for-sale investment securities	$	52,308		$	11,602			13,975

	Gross gains	$	6		$	—		$	—
	Gross losses		(5	)		—			—

	Net realized gains on sales of available-for-sale investment securities	$	1		$	—		$	—

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
Fair Value of Financial Instruments (Tables)	Mar. 31, 2015
Fair Value of Financial Instruments
Schedule of financial assets and liabilities measured at fair value on a recurring basis
	The following table summarizes the Company's financial assets and liabilities measured at fair value on a recurring basis at March 31, 2015

		Level 1			Level 2		Level 3		Total
	Assets:
	Investments:
	Available-for-sales securities—current	$	—		$	90,414	$	—	$	90,414
	Available-for-sales securities—non-current		—			20,732		—		20,732
	Foreign currency derivative contracts		—			4,644		—		4,644

	Total assets	$	—		$	115,790	$	—	$	115,790
	Liabilities:
	Foreign currency derivative contracts	$	—		$	1,802	$	—	$	1,802
	Contingent consideration		—			—		2,432		2,432

	Total liabilities	$	—		$	1,802	$	2,432	$	4,234


Schedule of changes in fair value of Level 3 financial assets

		Level 3
		Assets
	Balance at April 1, 2014	$	288
	Auction-rate securities redeemed at par		(300	)
	Total gains reclassified out of other comprehensive income		12

	Balance at March 31, 2015	$	—



Schedule of changes in fair value of the Company's Level 3 financial liabilities

		Level 3 Liabilities
	Balance at April 1, 2014	$	5,925
	Payment of OSB contingent consideration (See Note 4)		(3,000	)
	Reversal of the TradeTech earn-out recognized in earnings (See Note 4)		(1,833	)
	Increase of the OSB earn-out recognized in earnings (See Note 4)		1,390
	Foreign currency translation adjustments		(50	)

	Balance at March 31, 2015	$	2,432

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
Property and Equipment (Tables)	Mar. 31, 2015
Property and Equipment
Schedule of property and equipment and their estimated useful lives in years

			March 31,
		Estimated Useful	March 31,
		Life (Years)	2015		2014
	Computer and other equipment	3 - 5	$	27,513	$	25,623
	Furniture and fixtures	7		8,629		8,075
	Vehicles	3 - 5		1,041		740
	Software	3 - 10		16,255		12,796
	Leasehold improvements	Lesser of estimated useful life or lease term		5,418		4,686
	Buildings	15 - 30		11,563		11,853
	Land			320		331
	Capital work-in-progress			3,452		1,867

			$	74,191	$	65,971
	Less—accumulated depreciation and amortization			36,203		30,625

	Property and equipment, net		$	37,988	$	35,346

Accrued_Expenses_and_Other_Tab

Accrued Expenses and Other (Tables)	12 Months Ended
Accrued Expenses and Other (Tables)	Mar. 31, 2015
Accrued Expenses and Other
Schedule of accrued expenses and other

		March 31,		March 31,
		2015		2014
	Accrued other taxes	$	4,137	$	3,813
	Accrued professional fees		6,978		5,804
	Acquisition related liabilities		2,432		6,890
	Hedge liability		1,183		4,195
	Accrued discounts		3,867		2,261
	Accrued other		5,165		4,336

	Total	$	23,762	$	27,299

Stock_Options_Restricted_Stock1

Stock Options, Restricted Stock Awards and Stock Appreciation Rights (Tables)	12 Months Ended
	Mar. 31, 2015
Stock Options, Restricted Stock Awards and Stock Appreciation Rights
Summary of stock option activity under the 2000 Plan and the 2007 Plan

		Number of			Weighted		Weighted		Aggregate
		Options			Average		Average		Intrinsic
		to Purchase			Exercise		Remaining		Value
		Common			Price		Life (in years)
		Shares
	Outstanding at March 31, 2012		1,587,324		$	9.97
	Granted		93,153			15.61
	Exercised		(267,575	)		8.22
	Forfeited or cancelled		(43,560	)		14.28

	Outstanding at March 31, 2013		1,369,342			10.56
	Granted		49,201			28.37
	Exercised		(321,577	)		8.11
	Forfeited or cancelled		(12,037	)		18

	Outstanding at March 31, 2014		1,084,929			12.01
	Granted		833			33.23
	Exercised		(269,384	)		8.56
	Forfeited or cancelled		(9,522	)		15.6

	Outstanding at March 31, 2015		806,856		$	13.15		4.94	$	22,781

	Exercisable at March 31, 2015		668,606		$	12.03		4.45	$	19,626



Stock options, restricted stock awards and stock appreciation rights
Summary of SAR Plan activity

		SAR Plan Activity
		Number of			Weighted		Weighted		Aggregate
		SARs			Average		Average		Intrinsic
					Exercise		Remaining		Value
					Price		Life (in years)
	Outstanding at March 31, 2012		31,146			4.36
	Granted		—			—
	Exercised		(8,378	)		3.72
	Forfeited or cancelled		(399	)		4.84

	Outstanding at March 31, 2013		22,369			4.6
	Granted		—			—
	Exercised		(8,176	)		4.84
	Forfeited or cancelled		(2,072	)		2.29

	Outstanding at March 31, 2014		12,121			4.82
	Granted		—			—
	Exercised		(6,626	)		5.34
	Forfeited or cancelled		(385	)		6.28

	Outstanding and exercisable at March 31, 2015		5,110		$	4.04		1.22	$	191



Deferred restricted stock awards
Stock options, restricted stock awards and stock appreciation rights
Summary of restricted stock activity under the 2000 Plan and the 2007 Plan

		Restricted Stock Award Activity
		Number of			Weighted Average
		Restricted			Grant date Fair Value
		Stock Awards
	Unvested at March 31, 2012		831,656		$	15.43
	Awarded		465,733			15.04
	Vested		(284,833	)		14.27
	Forfeited		(43,157	)		16.34

	Unvested at March 31, 2013		969,399			15.55
	Awarded		268,578			26.7
	Vested		(377,359	)		14.56
	Forfeited		(57,898	)		15.51

	Unvested at March 31, 2014		802,720			19.74
	Awarded		197,715			33.91
	Vested		(296,538	)		18.34
	Forfeited		(65,419	)		21.49

	Unvested at March 31, 2015		638,478		$	24.6



Restricted stock units
Stock options, restricted stock awards and stock appreciation rights
Summary of restricted stock activity under the 2000 Plan and the 2007 Plan

		Restricted Stock Unit Activity
		Number of			Weighted Average
		Restricted			Grant Date Fair Value
		Stock Units
	Unvested at March 31, 2012		49,416		$	16.59
	Awarded		—			—
	Vested		(12,354	)		16.59
	Forfeited		—			—

	Unvested at March 31, 2013		37,062			16.59
	Awarded		217,147			27.99
	Vested		(19,875	)		20
	Forfeited		—			—

	Unvested at March 31, 2014		234,334			26.87
	Awarded		264,579			33.18
	Vested		(87,783	)		25.61
	Forfeited		(6,333	)		33.91

	Unvested at March 31, 2015		404,797		$	31.16

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Mar. 31, 2015
Income Taxes
Schedule of income before income tax expense based on the geographic location

		Year Ended March 31,
		2015			2014			2013
	United States	$	15,734		$	10,876		$	7,471
	Foreign		41,666			35,048			28,388

	Total	$	57,400		$	45,924		$	35,859



Schedule of provision for income taxes

		Year Ended March 31,
		2015			2014			2013
	Current provision:
	Federal	$	8,217		$	2,973		$	3,390
	State		2,415			874			1,002
	Foreign		7,291			6,084			4,905

	Total current provision	$	17,923		$	9,931		$	9,297

	Deferred (benefit) provision:
	Federal	$	(2,066	)	$	1,173		$	(468	)
	State		(616	)		272			(146	)
	Foreign		(287	)		173			(1,222	)

	Total deferred (benefit) provision	$	(2,969	)	$	1,618		$	(1,836	)

	Total provision for income taxes	$	14,954		$	11,549		$	7,461



Summary of items which gave rise to differences between the income taxes in the statements of income and the income taxes computed at the U.S. statutory rate

		Year Ended March 31,
		2015			2014			2013
	Statutory tax rate		35	%		34	%		34	%
	U.S. state and local taxes, net of U.S. federal income tax effects		1.9			1.6			1.6
	Benefit from foreign subsidiaries' tax holidays		(8.8	)		(9.8	)		(15.7	)
	Foreign rate difference		(3.2	)		(2.2	)		0.1
	Permanent items		1.3			1.3			2.4
	Other adjustments		(0.1	)		0.2			(1.6	)

	Effective income tax rate		26.1	%		25.1	%		20.8	%



Schedule of deferred tax assets (liabilities)

		March 31,
		2015			2014
	Deferred revenue	$	309		$	154
	Bad debt reserve		261			291
	Tax credit carry forwards		3,861			3,983
	Accrued expenses and reserves		8,418			6,539
	Share-based compensation expense		3,151			3,298
	Intangibles		3,058			2,593
	Unrealized losses		—			1,610
	Net operating loss		1,046			73

	Total gross deferred tax assets	$	20,104		$	18,541

	Valuation allowance		(902	)		—

	Total deferred tax assets	$	19,202		$	18,541

	Depreciation		(1,050	)		(798	)
	Unrealized gains		(409	)		—
	Acquisition and other liabilities		(4,212	)		(6,231	)
	Goodwill		(3,585	)		(2,995	)

	Total deferred tax liabilities	$	(9,256	)	$	(10,024	)

	Net deferred tax assets/liabilities	$	9,946		$	8,517



Summary of the activity related to the gross unrecognized tax benefits

		Year Ended March 31,
		2015			2014			2013
	Balance as of beginning of the fiscal year	$	410		$	4,823		$	5,957
	Foreign currency translation related to prior year tax positions		(3	)		(32	)		—
	Decreases related to prior year tax positions		—			(208	)		(499	)
	Decreases related to prior year tax positions due to settlements or lapse in applicable statute of limitations		(94	)		(4,311	)		(947	)
	Increases related to prior year tax positions		233			138			312

	Balance at end of the fiscal year	$	546		$	410		$	4,823

Postretirement_Benefits_Tables

Post-retirement Benefits (Tables)	12 Months Ended
Post-retirement Benefits (Tables)	Mar. 31, 2015
Post-retirement Benefits
Schedule of cost of pension plans

			Year Ended March 31,
			2015			2014			2013
	Components of net periodic pension expense
	Expected return on plan assets		$	(214	)	$	(210	)	$	(188	)
	Service costs for benefits earned			564			527			452
	Interest cost on projected benefit obligation			233			205			179
	Amortization of prior service cost			10			10			11
	Recognized net actuarial loss			114			90			92

	Net periodic pension expense		$	707		$	622		$	546



Schedule of actuarial assumptions

			Year Ended March 31,
			2015		2014		2013
	Discount rate		7.80% - 10.00%		8.00% - 11.5%		8.00% - 12.25%
	Compensation increases (annual)		7.00% - 7.50%		7.00% - 7.50%		7.00% - 7.50%
	Expected return on assets		8.50% - 12.52%		8.50% - 12.25%		8.50% - 13.13%


Schedule of accumulated benefit obligation and projected benefit obligation

			As of March 31,
			2015			2014
	Accumulated benefit obligation		$	2,393		$	1,939

	Projected benefit obligation:
	Beginning balance		$	2,758		$	2,580
	Service cost			564			527
	Interest cost			233			205
	Actuarial (gain) loss			535			(25	)
	Benefits paid			(391	)		(352	)
	Exchange rate adjustments			(95	)		(177	)

	Ending balance		$	3,604		$	2,758



Schedule of fair value of plan assets

			Plan assets
	Balance at April 1, 2014		$	2,822
	Employer contributions			447
	Actual gain on plan assets			265
	Benefits paid			(391	)
	Exchange rate adjustments			(89	)

	Balance at March 31, 2015		$	3,054



Schedule of plan asset allocation

			March 31, 2015
			Target		Actual
			Allocation		Allocation
	Government securities		50% - 60%			52	%
	Corporate debt		30% - 50%			47	%
	Other		1% - 20%			1	%


Schedule of fair values of the Company's pension plan assets

			Fair Value Measurements
	Asset Category		Total			Quoted Prices in			Significant
						Active Markets for			Observable
						Identical Assets			Inputs
						(Level 1)			(Level 2)
	At March 31, 2015
	Government Bonds(1)		$	1,382		$	—		$	1,382
	Corporate Bonds(2)			1,062			—			1,062
	Equity Shares and Others(3)			610			185			425

			$	3,054		$	185		$	2,869

	At March 31, 2014
	Government Bonds(1)		$	1,166		$	—		$	1,166
	Corporate Bonds(2)			1,059			—			1,059
	Equity Shares and Others(3)			597			185			412

			$	2,822		$	185		$	2,637



		-1		This category comprises government fixed income investments with investments in India and Sri Lanka.

		-2		This category represents investment in bonds and debentures from diverse industries.

		-3		This category represents equity shares, money market investments and other investments.

Schedule of pension liability

			March 31,
			2015			2014
	PBO		$	3,604		$	2,758
	Fair value of plan assets			3,054			2,822

	Funded status recognized		$	550		$	(64	)
	Amount recorded in accumulated other comprehensive income		$	932		$	578



Schedule of pretax amounts of prior service cost and actuarial gain (loss) recognized from accumulated other comprehensive income

			March 31,
			2015			2014			2013
	Prior service cost		$	(10	)	$	(10	)	$	(10	)
	Net amortization gain (loss)			(114	)		(90	)		82

	Total		$	(124	)	$	(100	)	$	72



Schedule of estimated future benefits payments

	Fiscal year ending March 31:
	2016		$	775
	2017			702
	2018			785
	2019			1,267
	2020			1,001
	2021 - 2025			6,802

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
Accumulated Other Comprehensive Loss (Tables)	Mar. 31, 2015
Accumulated Other Comprehensive Loss:
Schedule of changes in accumulated other comprehensive income (loss) by component

		March 31,
		2015			2014			2013
	Investment securities
	Beginning balance	$	(54	)	$	(3	)	$	(8	)
	Other comprehensive income (loss) (OCI) before reclassifications, net of tax of $21, $(28), $0		36			(51	)		5
	Reclassifications from OCI to other income, net of tax of $0 for all periods		—			—			—

	Comprehensive income (loss) on investment securities, net of tax of $21, $(28), $0		36			(51	)		5

	Closing Balance	$	(18	)	$	(54	)	$	(3	)

	Currency translation adjustments
	Beginning balance	$	(23,253	)	$	(16,918	)	$	(13,109	)
	Recognized in OCI		(12,312	)		(6,335	)		(3,809	)

	Closing balance	$	(35,565	)	$	(23,253	)	$	(16,918	)

	Cash flow hedges
	Cash flow hedges
	Beginning balance	$	(3,829	)	$	(1,013	)	$	(4,524	)
	OCI before reclassifications net of tax of $1,511, $(2,993), $(954)		5,169			(7,291	)		(1,210	)
	Reclassifications from OCI to
	—Costs of revenue, net of tax of $321, $1,377, $1,578		659			2,793			3,030
	—Selling, general and administrative expenses, net of tax of $185, $831, $882		388			1,682			1,691

	Comprehensive income (loss) on cash flow hedges, net of tax of $2,017, $(785), $1,506		6,216			(2,816	)		3,511

	Closing balance	$	2,387		$	(3,829	)	$	(1,013	)

	Benefit plans
	Beginning balance	$	(578	)	$	(780	)	$	(702	)
	OCI before reclassifications net of tax of $(16), $0, $0		(477	)		37			(175	)
	Reclassifications from OCI for prior service credit (cost) to:
	—Costs of revenue, net of tax of $2,$0,$0		66			71			56
	—Selling, general and administrative expenses, net of tax of $2, $0, $0		45			19			37
	Reclassifications from OCI for net actuarial gain (loss) amortization to:

	—Costs of revenue, net of tax of $0 for all periods		8			8			6
	—Selling, general and administrative expenses, net of tax of $0 for all periods		2			2			4
	Other adjustments		2			65			(6	)

	Comprehensive income (loss) on benefit plans, net of tax of $(12), $0, $0		(354	)		202			(78	)

	Closing balance	$	(932	)	$	(578	)	$	(780	)

	Accumulated other comprehensive income (loss)	$	(34,128	)	$	(27,714	)	$	(18,714	)

Commitments_Contingencies_and_1

Commitments, Contingencies and Guarantees (Tables)	12 Months Ended
Commitments, Contingencies and Guarantees (Tables)	Mar. 31, 2015
Commitments, Contingencies and Guarantees
Schedule of future minimum lease payments under non-cancelable leases
	Future minimum lease payments under non-cancelable leases for the five fiscal years following March 31, 2015 and thereafter are:

		Operating		Capital
		Leases		Leases
	Fiscal year ending March 31:
	2016	$	7,502	$	118
	2017		7,308		115
	2018		5,358		58
	2019		2,031		12
	2020		1,280		—
	2021 and thereafter		1,325		—

	Total minimum lease payments	$	24,804	$	303



	Less: amount representing interest				47

	Present value of future lease payments			$	256
	Less: current portion				91

	Long term capital lease obligation			$	165

Derivative_Financial_Instrumen1

Derivative Financial Instruments and Trading Activities (Tables)	12 Months Ended
	Mar. 31, 2015
Derivative Financial Instruments and Trading Activities
Schedule of fair value of derivative instruments included in the consolidated balance sheets

		March 31, 2015			March 31, 2014
	Foreign currency exchange contracts:
	Other current assets	$	3,285		$	398
	Other long-term assets	$	1,359		$	586
	Accrued expenses and others	$	1,183		$	3,925
	Long-term liabilities	$	619		$	2,449


Schedule of effect of the foreign currency exchange contracts on the consolidated financial statements

		Amount of Gain or (Loss)
		Recognized in AOCI on
		Derivatives (Effective Portion)
	Derivatives Designated as	March 31, 2015			March 31, 2014
	Cash Flow Hedging Relationships	March 31, 2015			March 31, 2014
	Foreign currency exchange contracts	$	6,680		$	(10,284	)


		Amount of Gain or (Loss)
		Reclassified from AOCI into
		Income (Effective Portion)
	Location of Gain or (Loss) Reclassified	March 31, 2015			March 31, 2014
	from AOCI into Income (Effective Portion)	March 31, 2015			March 31, 2014
	Costs of revenue	$	(980	)	$	(4,170	)
	Operating expenses	$	(573	)	$	(2,513	)


				Amount of Gain or (Loss)
				Recognized in Income
				on Derivatives
	Derivatives not Designated	Location of Gain Or (Loss)		March 31, 2015			March 31, 2014
	as Hedging Instruments	Recognized in Income on Derivatives		March 31, 2015			March 31, 2014
	Foreign currency exchange contracts	Foreign currency transaction gains (losses)		$	66		$	(2,388	)
		Revenue		$	(389	)	$	(847	)
		Costs of revenue		$	(279	)	$	343
		Selling, general and administrative expenses		$	(93	)	$	50

Business_Segment_Information_T

Business Segment Information (Tables)	12 Months Ended
Business Segment Information (Tables)	Mar. 31, 2015
Business Segment Information
Schedule of revenue attributed to geographic areas based on location of the client

		Year Ended March 31,
		2015		2014		2013
	Customer revenue:
	North America	$	319,285	$	278,318	$	251,219
	Europe		129,904		97,178		65,863
	Other		29,797		21,437		16,093

	Consolidated revenue	$	478,986	$	396,933	$	333,175



Schedule of long-lived assets, net of accumulated depreciation and amortization attributed to geographic areas based on location of assets

		March 31,
		2015		2014
	Long-lived assets, net of accumulated depreciation and amortization:
	North America	$	59,316	$	61,562
	Asia		32,896		32,235
	Europe		18,045		23,658

	Consolidated long-lived assets, net	$	110,257	$	117,455

Quarterly_Results_of_Operation1

Quarterly Results of Operations (unaudited) (Tables)	12 Months Ended
Quarterly Results of Operations (unaudited) (Tables)	Mar. 31, 2015
Quarterly Results of Operations (unaudited)
Schedule of quarterly results of operations

		Three Months Ended
		March 31,		December 31,		September 30,		June 30,		March 31,		December 31,		September 30,		June 30,
		2015		2014		2014		2014		2014		2013		2013		2013
	Revenue	$	126,016	$	122,996	$	117,700	$	112,274	$	111,100	$	101,043	$	94,301	$	90,489
	Costs of revenue		79,722		77,144		74,968		72,588		68,407		63,821		60,503		57,802

	Gross profit		46,294		45,852		42,732		39,686		42,693		37,222		33,798		32,687
	Operating expenses		31,816		31,233		30,491		28,456		30,182		26,026		24,022		23,758

	Income from operations		14,478		14,619		12,241		11,230		12,511		11,196		9,776		8,929
	Other income		1,221		1,360		1,257		994		1,116		1,155		105		1,136

	Income before income tax expense		15,699		15,979		13,498		12,224		13,627		12,351		9,881		10,065
	Income tax expense		4,149		4,200		3,384		3,221		3,580		3,023		2,403		2,543

	Net income	$	11,550	$	11,779	$	10,114	$	9,003	$	10,047	$	9,328	$	7,478	$	7,522

	Basic earnings per share	$	0.40	$	0.41	$	0.35	$	0.32	$	0.36	$	0.36	$	0.29	$	0.30
	Diluted earnings per share	$	0.39	$	0.40	$	0.34	$	0.31	$	0.35	$	0.35	$	0.28	$	0.29

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
	item	Mar. 31, 2014	Mar. 31, 2013
Cash and cash equivalents and restricted cash
Restricted cash	$112	$2,755
Payment of hold back	2,660	21,460	2,775
Goodwill and Intangible Assets
Number of reporting unit	1
Impairment charge	0
OSB
Cash and cash equivalents and restricted cash
Payment of hold back	684
Trade Tech
Cash and cash equivalents and restricted cash
Payment of hold back	$1,976

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details 2) (Gross accounts receivable, Credit concentration)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Concentration of Credit Risk
Number of clients	2	1
Client one
Concentration of Credit Risk
Concentration risk percentage	13.00%	10.00%
Client two
Concentration of Credit Risk
Concentration risk percentage	10.00%

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Details 3) (Sales revenue)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Customer A
Significant Customers
Concentration risk percentage	12.00%	13.00%	11.00%
Customer B
Significant Customers
Concentration risk percentage	11.00%	13.00%	14.00%

Summary_of_Significant_Account6

Summary of Significant Accounting Policies (Details 4) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Revenue Recognition
Reimbursements of travel and out-of-pocket expenses	$10,877	$5,921	$7,001
Costs of Revenue and Operating Expenses
Advertising and promotional expenses	430	255	204
Software
Internally-developed software
Capitalized software development costs	7,302	5,603
Amortization of capitalized software development costs	$706	$733	$351
Software \| Minimum
Internally-developed software
Estimated useful life	3 years
Software \| Maximum
Internally-developed software
Estimated useful life	10 years

Summary_of_Significant_Account7

Summary of Significant Accounting Policies (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Share-based compensation
Total share-based compensation expense	$11,098	$8,166	$5,876
Weighted Average Fair Value Options Pricing Model Assumptions
Risk-free interest rate (as a percent)	1.62%	1.31%	0.88%
Expected term	5 years 7 days	5 years 7 months 6 days	6 years 1 month 24 days
Anticipated common stock volatility (as a percent)	42.59%	52.31%	62.53%
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Unrecognized compensation cost
Unrecognized compensation cost related to unvested stock options, restricted stock awards and deferred stock awards	14,988
Weighted average period for recognition of unrecognized compensation cost	1 year 7 months 2 days
Costs of revenue
Share-based compensation
Total share-based compensation expense	1,121	912	718
Selling, general and administrative expenses
Share-based compensation
Total share-based compensation expense	$9,977	$7,254	$5,158

Earnings_per_Share_Details

Earnings per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Numerators:
Net income available to common stockholders	$11,550	$11,779	$10,114	$9,003	$10,047	$9,328	$7,478	$7,522	$42,446	$34,375	$28,398
Denominators:
Weighted average common shares outstanding									28,753,102	26,116,516	24,937,162
Dilutive effect of employee stock options and unvested restricted stock awards (in shares)									794,883	842,864	683,470
Dilutive effect of stock appreciation rights (in shares)									7,639	13,621	18,207
Weighted average shares-diluted									29,555,624	26,973,001	25,638,839
Basic earnings per share	$0.40	$0.41	$0.35	$0.32	$0.36	$0.36	$0.29	$0.30	$1.48	$1.32	$1.14
Diluted earnings per share	$0.39	$0.40	$0.34	$0.31	$0.35	$0.35	$0.28	$0.29	$1.44	$1.27	$1.11
Unvested restricted stock and options excluded from the calculations of diluted earnings per share (in shares)									21,629	29,766	450,299

Acquisitions_Details

Acquisitions (Details) (USD $)	12 Months Ended			0 Months Ended	5 Months Ended	9 Months Ended	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Nov. 01, 2013	Mar. 31, 2014	Dec. 31, 2014	Jan. 02, 2014
Acquisitions
Payment of hold back	$2,660	$21,460	$2,775
OSB
Acquisitions
Purchase price in cash				6,840
Hold back period				12 months
Fair value of contingent consideration	2,432	4,042			4,042
Earn-out consideration	3,000
Percentage of target achieved					100.00%	100.00%
Payment of hold back	684
Hold back percentage				10.00%
OSB \| Selling, general and administrative expenses
Acquisitions
Change in fair value of contingent consideration	1,390
OSB \| Maximum
Acquisitions
Additional consideration				6,000
Trade Tech
Acquisitions
Fair value of contingent consideration	0	1,883			1,883
Payment of hold back	1,976
Trade Tech \| Selling, general and administrative expenses
Acquisitions
Change in fair value of contingent consideration	1,833
Trade Tech \| Virtusa BV
Acquisitions
Purchase price in cash							19,555
Hold back period							12 months
Earn-out consideration							4,080
Hold back percentage							12.50%
Period considered for achievement of certain revenue and EBITDA targets for earn-out consideration							12 months
Trade Tech \| Deferred restricted stock awards
Acquisitions
Authorized value of awards							$2,000
Number of authorized shares							65,000
Vesting period							5 years

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
	item
Goodwill:
Number of reportable segments	1
Changes in goodwill
Balance at the beginning of the period	$53,448
Foreign currency translation adjustments	-3,088
Balance at the end of the period	50,360
Acquisition costs and goodwill deductible for tax purposes	41,834
Trade Tech
Changes in goodwill
Acquisition costs and goodwill not deductible for tax purposes	$9,917

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Intangible Assets
Weighted Average Useful Life	9 years	9 years
Gross Carrying Amount	$35,970	$38,697
Accumulated Amortization	14,061	10,036
Net Carrying Amount	21,909	28,661
Amortization expense	4,436	3,431	2,556
Estimated amortization expense related to the purchased intangible assets
2016		3,828
2017		3,732
2018		3,455
2019		2,460
2020		2,453
Thereafter		5,981
Total		21,909
Customer relationships
Intangible Assets
Weighted Average Useful Life	9 years 4 months 24 days	9 years 4 months 24 days
Gross Carrying Amount	34,070	36,410
Accumulated Amortization	12,259	8,978
Net Carrying Amount	21,811	27,432
Partner relationships
Intangible Assets
Weighted Average Useful Life	6 years 6 months	6 years 6 months
Gross Carrying Amount	700	700
Accumulated Amortization	602	486
Net Carrying Amount	98	214
Trademark
Intangible Assets
Weighted Average Useful Life	1 year	1 year
Gross Carrying Amount	57	75
Accumulated Amortization	57	18
Net Carrying Amount		57
Backlog
Intangible Assets
Weighted Average Useful Life	1 year	1 year
Gross Carrying Amount	1,143	1,512
Accumulated Amortization	1,143	554
Net Carrying Amount		$958

Investment_Securities_Details

Investment Securities (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
	item	Mar. 31, 2014	Mar. 31, 2013
Investment Securities
Amortized Cost	$111,177	$117,992
Gross Unrealized Gains	14	15
Gross Unrealized Losses	-45	-104
Fair Value	111,146	117,903
Fair Value
Less Than 12 Months	41,273	58,884
Greater Than 12 Months	3,001	288
Gross Unrealized Loss
Less Than 12 Months	-43	-92
Greater Than 12 Months	-2	-12
Number of investment securities in unrealized loss positions for greater than 12 months	0
Available-for-sale securities by contractual maturity
Due in one year or less	90,414
Due after 1 year through 5 years	20,732
Total	111,146
Proceeds from Sale of Available-for-sale Securities [Abstract]
Proceeds from sales of available-for-sale investment securities	52,308	11,602	13,975
Gross gains	6
Gross losses	-5
Net realized gains on sales of available-for-sale investment securities	1
Corporate bonds
Fair Value
Less Than 12 Months	36,272	49,082
Greater Than 12 Months	1,901
Gross Unrealized Loss
Less Than 12 Months	-41	-78
Greater Than 12 Months	-2
Corporate bonds \| Current
Investment Securities
Amortized Cost	41,873	20,255
Gross Unrealized Gains	10	9
Gross Unrealized Losses	-22	-8
Fair Value	41,861	20,256
Corporate bonds \| Non-current
Investment Securities
Amortized Cost	10,551	50,264
Gross Unrealized Gains		5
Gross Unrealized Losses	-21	-70
Fair Value	10,530	50,199
Auction-rate securities
Fair Value
Greater Than 12 Months		288
Gross Unrealized Loss
Greater Than 12 Months		-12
Auction-rate securities \| Non-current
Investment Securities
Amortized Cost		300
Gross Unrealized Losses		-12
Fair Value		288
Agency and short-term notes \| Current
Investment Securities
Amortized Cost	6,737	561
Gross Unrealized Gains	3
Fair Value	6,740	561
Agency and short-term notes \| Non-current
Investment Securities
Amortized Cost	10,203	11,341
Gross Unrealized Gains	1	1
Gross Unrealized Losses	-2	-14
Fair Value	10,202	11,328
Commercial paper \| Current
Investment Securities
Amortized Cost		5,497
Fair Value		5,497
Municipal bonds \| Current
Investment Securities
Amortized Cost	200
Fair Value	200
Municipal bonds \| Non-current
Investment Securities
Amortized Cost		200
Fair Value		200
Time deposits \| Current
Investment Securities
Amortized Cost	41,613	29,574
Fair Value	41,613	29,574
Agency bonds
Fair Value
Less Than 12 Months	5,001	9,802
Greater Than 12 Months	1,100
Gross Unrealized Loss
Less Than 12 Months	($2)	($14)

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Level 3
Liabilities:
Total liabilities	$2,432	$5,925
Recurring \| Level 2
Investments:
Available-for-sale securities - current	90,414
Available-for-sale securities - non-current	20,732
Foreign currency derivative contracts	4,644
Total assets	115,790
Liabilities:
Foreign currency derivative contracts	1,802
Total liabilities	1,802
Recurring \| Level 3
Liabilities:
Contingent consideration	2,432
Total liabilities	2,432
Recurring \| Total
Investments:
Available-for-sale securities - current	90,414
Available-for-sale securities - non-current	20,732
Foreign currency derivative contracts	4,644
Total assets	115,790
Liabilities:
Foreign currency derivative contracts	1,802
Contingent consideration	2,432
Total liabilities	$4,234

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Changes in fair value of the Company's Level 3 financial liabilities
Increase (decrease) in contingent consideration (See Note 4)	($1,833)
Foreign currency translation adjustments	-12,312	-6,335	-3,809
Level 3
Changes in fair value of the Company's Level 3 financial liabilities
Balance at start of period	5,925
Foreign currency translation adjustments	-50
Balance at end of period	2,432
Level 3 \| OSB
Changes in fair value of the Company's Level 3 financial liabilities
Payment of OSB contingent consideration (See Note 4)	-3,000
Increase (decrease) in contingent consideration (See Note 4)	1,390
Level 3 \| TradeTech
Changes in fair value of the Company's Level 3 financial liabilities
Increase (decrease) in contingent consideration (See Note 4)	-1,833
Auction-rate securities \| Level 3
Summary of changes in fair value of the Company's Level 3 financial assets
Balance at the beginning of the period	288
Auction-rate securities redeemed at par	-300
Total gains reclassified out of other comprehensive income	$12

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Property and Equipment
Property and equipment, gross	$74,191	$65,971
Less-accumulated depreciation and amortization	36,203	30,625
Property and equipment, net	37,988	35,346
Depreciation and amortization expense	9,116	8,071	6,484
Computer and other equipment
Property and Equipment
Property and equipment, gross	27,513	25,623
Computer and other equipment \| Minimum
Property and Equipment
Estimated Useful Life	3 years
Computer and other equipment \| Maximum
Property and Equipment
Estimated Useful Life	5 years
Furniture and fixtures
Property and Equipment
Estimated Useful Life	7 years
Property and equipment, gross	8,629	8,075
Vehicles
Property and Equipment
Property and equipment, gross	1,041	740
Vehicles \| Minimum
Property and Equipment
Estimated Useful Life	3 years
Vehicles \| Maximum
Property and Equipment
Estimated Useful Life	5 years
Software
Property and Equipment
Property and equipment, gross	16,255	12,796
Software \| Minimum
Property and Equipment
Estimated Useful Life	3 years
Software \| Maximum
Property and Equipment
Estimated Useful Life	10 years
Leasehold improvements
Property and Equipment
Property and equipment, gross	5,418	4,686
Building
Property and Equipment
Property and equipment, gross	11,563	11,853
Building \| Minimum
Property and Equipment
Estimated Useful Life	15 years
Building \| Maximum
Property and Equipment
Estimated Useful Life	30 years
Land
Property and Equipment
Property and equipment, gross	320	331
Capital work-in-progress
Property and Equipment
Property and equipment, gross	3,452	1,867
Assets under capital leases
Property and Equipment
Property and equipment, gross	370	142
Less-accumulated depreciation and amortization	$86	$26

Accrued_Expenses_and_Other_Det

Accrued Expenses and Other (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Accrued expenses and other
Accrued other taxes	$4,137	$3,813
Accrued professional fees	6,978	5,804
Acquisition related liabilities	2,432	6,890
Hedge liability	1,183	4,195
Accrued discounts	3,867	2,261
Accrued other	5,165	4,336
Total	$23,762	$27,299

Debt_Details

Debt (Details) (USD $)	12 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2013	Mar. 31, 2014
Debt
Receivables sold under the terms of the financing agreement	$28,291
Amounts due related to a financing agreement to sell certain accounts receivable balances	0
Amount outstanding under letters of credit	0		0
Prior secured revolving credit agreement
Debt
Maximum borrowing capacity under the credit agreement		3,000
Prior secured revolving credit agreement \| Maximum
Debt
Debt to Adjusted EBITDA Ratio		2
Fixed Charge Coverage Ratio		2.5
Line of credit agreement
Debt
Maximum borrowing capacity under the credit agreement		25,000
Term of credit facility		5 years
Amount outstanding under the credit facility	$0
Line of credit agreement \| LIBOR
Debt
Variable rate basis		LIBOR
Line of credit agreement \| LIBOR \| Minimum
Debt
Interest rate added to the base rate (as a percent)		1.50%
Line of credit agreement \| LIBOR \| Maximum
Debt
Interest rate added to the base rate (as a percent)		1.75%

Stock_Options_Restricted_Stock2

Stock Options, Restricted Stock Awards and Stock Appreciation Rights (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Jul. 31, 2005	31-May-07
Stock options
Stock options, restricted stock awards and stock appreciation rights
Shares available for future grant (in shares)	0
Term of awards	10 years
Vesting period	4 years
Number of Options to Purchase Common Shares
Outstanding at the beginning of the period (in shares)	1,084,929	1,369,342	1,587,324
Granted (in shares)	833	49,201	93,153
Exercised (in shares)	-269,384	-321,577	-267,575
Forfeited or cancelled (in shares)	-9,522	-12,037	-43,560
Outstanding at the end of the period (in shares)	806,856	1,084,929	1,369,342
Exercisable at the end of the period (in shares)	668,606
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$12.01	$10.56	$9.97
Granted (in dollars per share)	$33.23	$28.37	$15.61
Exercised (in dollars per share)	$8.56	$8.11	$8.22
Forfeited or cancelled (in dollars per share)	$15.60	$18	$14.28
Outstanding at the end of the period (in dollars per share)	$13.15	$12.01	$10.56
Exercisable at the end of the period (in dollars per share)	$12.03
Weighted Average Remaining Life (in years)
Outstanding at the end of the period	4 years 11 months 9 days
Exercisable at the end of the period	4 years 5 months 12 days
Aggregate Intrinsic Value
Outstanding at the end of the period	$22,781
Exercisable at the end of the period	19,626
Additional disclosure
Aggregate intrinsic value of options exercised	7,556	6,304	2,873
Weighted average fair value of options granted (in dollars per share)	$13.04	$13.85	$8.96
Income tax benefits realized from the exercise of stock options	4,692	3,198	759
Stock options \| Minimum
Stock options, restricted stock awards and stock appreciation rights
Purchase price of the entity's common stock expressed as a percentage of fair market value	100.00%
Stock options \| More Than 10% Stockholder
Stock options, restricted stock awards and stock appreciation rights
Ownership percentage triggering higher purchase price of the entity's shares	10.00%
Stock options \| More Than 10% Stockholder \| Minimum
Stock options, restricted stock awards and stock appreciation rights
Purchase price of the entity's common stock expressed as a percentage of fair market value	110.00%
Deferred restricted stock awards
Number of Restricted Stock Awards
Unvested at the beginning of the period (in shares)	802,720	969,399	831,656
Awarded (in shares)	197,715	268,578	465,733
Vested (in shares)	-296,538	-377,359	-284,833
Forfeited (in shares)	-65,419	-57,898	-43,157
Unvested at the end of the period (in shares)	638,478	802,720	969,399
Weighted Average Grant date Fair Value
Unvested at the beginning of the period (in dollars per share)	$19.74	$15.55	$15.43
Awarded (in dollars per share)	$33.91	$26.70	$15.04
Vested (in dollars per share)	$18.34	$14.56	$14.27
Forfeited (in dollars per share)	$21.49	$15.51	$16.34
Unvested at the end of the period (in dollars per share)	$24.60	$19.74	$15.55
Restricted stock units
Number of Restricted Stock Awards
Unvested at the beginning of the period (in shares)	234,334	37,062	49,416
Awarded (in shares)	264,579	217,147
Vested (in shares)	-87,783	-19,875	-12,354
Forfeited (in shares)	-6,333
Unvested at the end of the period (in shares)	404,797	234,334	37,062
Weighted Average Grant date Fair Value
Unvested at the beginning of the period (in dollars per share)	$26.87	$16.59	$16.59
Awarded (in dollars per share)	$33.18	$27.99
Vested (in dollars per share)	$25.61	$20	$16.59
Forfeited (in dollars per share)	$33.91
Unvested at the end of the period (in dollars per share)	$31.16	$26.87	$16.59
Stock appreciation rights
Number of SARs
Outstanding at the beginning of the period (in shares)	12,121	22,369	31,146
Exercised (in shares)	-6,626	-8,176	-8,378
Forfeited or cancelled (in shares)	-385	-2,072	-399
Outstanding and exercisable at the end of the period (in shares)	5,110	12,121	22,369
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$4.82	$4.60	$4.36
Exercised (in dollars per share)	$5.34	$4.84	$3.72
Forfeited or cancelled (in dollars per share)	$6.28	$2.29	$4.84
Outstanding and exercisable at the end of the period (in dollars per share)	$4.04	$4.82	$4.60
Weighted Average Remaining Life
Outstanding and exercisable at the end of the period	1 year 2 months 19 days
Aggregate Intrinsic Value
Outstanding and exercisable at the end of the period	191
Aggregate intrinsic value of SARs exercised	$216	$221	$113
2000 Plan
Stock options, restricted stock awards and stock appreciation rights
Shares available for future grant (in shares)	11,630
SAR Plan
Stock options, restricted stock awards and stock appreciation rights
Number of shares reserved for issuance				479,233
2007 Plan
Stock options, restricted stock awards and stock appreciation rights
Shares available for future grant (in shares)	2,371,828
Number of shares reserved for issuance					830,670
Percentage of increase in authorized shares on each April 1, beginning in 2008	2.90%

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income before income tax expense based on the geographic location
United States									$15,734	$10,876	$7,471
Foreign									41,666	35,048	28,388
Income before income tax expense	15,699	15,979	13,498	12,224	13,627	12,351	9,881	10,065	57,400	45,924	35,859
Current provision:
Federal									8,217	2,973	3,390
State									2,415	874	1,002
Foreign									7,291	6,084	4,905
Total current provision									17,923	9,931	9,297
Deferred (benefit) provision:
Federal									-2,066	1,173	-468
State									-616	272	-146
Foreign									-287	173	-1,222
Total deferred (benefit) provision									-2,969	1,618	-1,836
Total provision for income taxes	4,149	4,200	3,384	3,221	3,580	3,023	2,403	2,543	14,954	11,549	7,461
Items which gave rise to differences between the income taxes in the statements of income and the income taxes computed at the U.S. statutory rate
Statutory tax rate (as a percent)									35.00%	34.00%	34.00%
U.S. state and local taxes, net of U.S. federal income tax effects (as a percent)									1.90%	1.60%	1.60%
Benefit from foreign subsidiaries' tax holidays (as a percent)									8.80%	9.80%	15.70%
Foreign rate difference (as a percent)									-3.20%	-2.20%	0.10%
Permanent items (as a percent)									1.30%	1.30%	2.40%
Other adjustments (as a percent)									-0.10%	0.20%	-1.60%
Effective income tax rate (as a percent)									26.10%	25.10%	20.80%
Deferred tax assets (liabilities)
Deferred revenue	309				154				309	154
Bad debt reserve	261				291				261	291
Tax credit carry forwards	3,861				3,983				3,861	3,983
Accrued expenses and reserves	8,418				6,539				8,418	6,539
Share-based compensation expense	3,151				3,298				3,151	3,298
Intangibles	3,058				2,593				3,058	2,593
Unrealized losses					1,610					1,610
Net operating losses	1,046				73				1,046	73
Total gross deferred tax assets	20,104				18,541				20,104	18,541
Valuation allowance	-902								-902
Total deferred tax assets	19,202				18,541				19,202	18,541
Depreciation	-1,050				-798				-1,050	-798
Unrealized gains	-409								-409
Acquisition and other liabilities	-4,212				-6,231				-4,212	-6,231
Goodwill	-3,585				-2,995				-3,585	-2,995
Total deferred tax liabilities	-9,256				-10,024				-9,256	-10,024
Net deferred tax assets/liabilities	$9,946				$8,517				$9,946	$8,517

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Income taxes
Change in valuation allowance	$902
Other Comprehensive Loss
Income taxes
Change in valuation allowance	829
Profit and loss statement
Income taxes
Change in valuation allowance	73
India
Income taxes
Minimum Alternative Tax credit carry forward	3,609
Foreign
Income taxes
Tax credits	252
Net operating loss carry forwards	$1,046

Income_Taxes_Details_3

Income Taxes (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income Taxes
Net income tax expense recorded in other comprehensive income related to the unrealized gain/loss on available for sale securities, the unrealized gain/loss on effective cash flow hedges and the foreign currency loss on certain long term intercompany balances	$2,026
Net income tax benefit recognized directly in additional paid in capital related to net excess tax benefits of share based compensation	$4,692	$3,198	$759

Income_Taxes_Details_4

Income Taxes (Details 4) (USD $)	12 Months Ended			24 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2011
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	item
Income Taxes
Unremitted earnings from foreign subsidiaries	$193,268
Cash and short-term investments available for distribution if not indefinitely reinvested	99,155
Total amount of unrecognized tax benefits that would reduce income tax expense and the effective income tax rate, if recognized	546	410	512
Unrecognized tax benefits to be realized through settlement with tax authorities or expiration of statute of limitations during next twelve months		109
Activity related to the gross unrecognized tax benefits
Balance as of beginning of the fiscal year	410	4,823	5,957
Foreign currency translation related to prior year tax positions	-3	-32
Decreases related to prior year tax positions		-208	-499
Decreases related to prior year tax positions due to settlements or lapse in applicable statute of limitations	-94	-4,311	-947
Increases related to prior year tax positions	233	138	312
Balance at end of the fiscal year	546	410	4,823
Accrued interest and penalties	55	62
Total accrued interest and penalties, including foreign currency translation relating to certain foreign and domestic tax matters	360	324
Increased in unrecognized tax benefits	136
Cash payment for settlement of prior uncertain tax positions	44
Tax impact of OCI for foreign currency translation	3
Unrecognized tax benefits recorded in income tax expense	183
Chennai
Income Taxes
Increase in net income due to income tax holiday	830
Increase in diluted earning per share due to income tax holiday (in dollars per share)	$0.03
Hyderabad
Income Taxes
Increase in net income due to income tax holiday	1,195
Increase in diluted earning per share due to income tax holiday (in dollars per share)	$0.04
Hyderabad and Chennai
Income Taxes
Number of special economic zones subject to partial expiration of tax benefits			2
Percentage of tax benefit subject to expiration			50.00%
India
Income Taxes
Number of export oriented units created				2
India \| Indian operations in areas designated as a SEZ
Income Taxes
Number of development centers operated	2
India \| Indian operations in areas designated as a SEZ \| Hyderabad
Income Taxes
Parcel of land (in acres)	6.3
Consecutive period of income tax exemption	10 years
Income tax benefits total eligibility period	15 years
India \| Virtusa India
Income Taxes
Current corporate income tax rate	33.99%
Sri Lanka \| Virtusa (Private) Limited
Income Taxes
Income tax exemption period	12 years
India and Sri Lanka
Income Taxes
Increase in net income due to income tax holiday	$5,048	$4,513	$5,647
Increase in diluted earning per share due to income tax holiday (in dollars per share)	$0.17	$0.17	$0.22
Maximum \| India \| Bangalore \| Indian Operations Software Technology Parks
Income Taxes
Income tax exemption period	15 years
Maximum \| India \| Indian operations in areas designated as a SEZ \| Pune
Income Taxes
Income tax exemption period	15 years
Maximum \| India \| Indian operations in areas designated as a SEZ \| Hyderabad and Chennai
Income Taxes
Income tax exemption period	15 years

Postretirement_Benefits_Detail

Post-retirement Benefits (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Fair value of plan assets
Other long-term assets	$6,746	$5,215
Accrued employee compensation and benefits	26,915	27,175
Benefit Plans:
Components of net periodic pension expense
Expected return on plan assets	-214	-210	-188
Service costs for benefits earned	564	527	452
Interest cost on projected benefit obligation	233	205	179
Amortization of prior service cost	10	10	11
Recognized net actuarial loss	114	90	92
Net periodic pension cost	707	622	546
Accumulated benefit obligation and projected benefit obligation
Accumulated benefit obligation	2,393	1,939
Projected benefit obligation:
Balance at the beginning of the period	2,758	2,580
Service cost	564	527	452
Interest cost	233	205	179
Actuarial (gain) loss	535	-25
Benefits paid	-391	-352
Exchange rate adjustments	-95	-177
Balance at the end of the period	3,604	2,758	2,580
Fair value of plan assets
Balance at the beginning of the period	2,822
Employer contributions	447
Actual gain on plan assets	265
Benefits paid	-391	-352
Exchange rate adjustments	-89
Balance at the end of the period	3,054	2,822
Benefit Plans: \| India
Fair value of plan assets
Other long-term assets		258
Benefit Plans: \| Sri Lanka
Fair value of plan assets
Accrued employee compensation and benefits		194
Benefit Plans: \| India and Sri Lanka
Fair value of plan assets
Accrued employee compensation and benefits	$550
Minimum \| Benefit Plans:
Actuarial assumptions
Discount rate (as a percent)	7.80%	8.00%	8.00%
Compensation increases (annual) (as a percent)	7.00%	7.00%	7.00%
Expected return on assets (as a percent)	8.50%	8.50%	8.50%
Maximum \| Benefit Plans:
Actuarial assumptions
Discount rate (as a percent)	10.00%	11.50%	12.25%
Compensation increases (annual) (as a percent)	7.50%	7.50%	7.50%
Expected return on assets (as a percent)	12.52%	12.25%	13.13%

Postretirement_Benefits_Detail1

Post-retirement Benefits (Details 2) (Benefit Plans:, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Plan asset allocation
Fair values of the pension plan assets	$3,054	$2,822
Pension liability
PBO	3,604	2,758	2,580
Fair value of plan assets	3,054	2,822
Funded status recognized	550	-64
Amount recorded in accumulated other comprehensive income	932	578
Amount in accumulated other comprehensive income (loss) that is expected to be recognized as a component of net periodic benefit cost	163
Expected contribution to gratuity plans by employer	1,000
Pretax amounts of prior service cost recognized in accumulated other comprehensive income
Prior service cost	-10	-10	-10
Net amortization gain (loss)	-114	-90	82
Total	-124	-100	72
Estimated future benefits payments
2016	775
2017	702
2018	785
2019	1,267
2020	1,001
2021-2025	6,802
Level 1
Plan asset allocation
Fair values of the pension plan assets	185	185
Pension liability
Fair value of plan assets	185	185
Level 2
Plan asset allocation
Fair values of the pension plan assets	2,869	2,637
Pension liability
Fair value of plan assets	2,869	2,637
Government securities/Bonds
Plan asset allocation
Actual Allocation (as a percent)	52.00%
Fair values of the pension plan assets	1,382	1,166
Pension liability
Fair value of plan assets	1,382	1,166
Government securities/Bonds \| Minimum
Plan asset allocation
Target Allocation (as a percent)	50.00%
Government securities/Bonds \| Maximum
Plan asset allocation
Target Allocation (as a percent)	60.00%
Government securities/Bonds \| Level 2
Plan asset allocation
Fair values of the pension plan assets	1,382	1,166
Pension liability
Fair value of plan assets	1,382	1,166
Corporate bonds
Plan asset allocation
Actual Allocation (as a percent)	47.00%
Fair values of the pension plan assets	1,062	1,059
Pension liability
Fair value of plan assets	1,062	1,059
Corporate bonds \| Minimum
Plan asset allocation
Target Allocation (as a percent)	30.00%
Corporate bonds \| Maximum
Plan asset allocation
Target Allocation (as a percent)	50.00%
Corporate bonds \| Level 2
Plan asset allocation
Fair values of the pension plan assets	1,062	1,059
Pension liability
Fair value of plan assets	1,062	1,059
Other/Equity Shares and Others
Plan asset allocation
Actual Allocation (as a percent)	1.00%
Fair values of the pension plan assets	610	597
Pension liability
Fair value of plan assets	610	597
Other/Equity Shares and Others \| Minimum
Plan asset allocation
Target Allocation (as a percent)	1.00%
Other/Equity Shares and Others \| Maximum
Plan asset allocation
Target Allocation (as a percent)	20.00%
Other/Equity Shares and Others \| Level 1
Plan asset allocation
Fair values of the pension plan assets	185	185
Pension liability
Fair value of plan assets	185	185
Other/Equity Shares and Others \| Level 2
Plan asset allocation
Fair values of the pension plan assets	425	412
Pension liability
Fair value of plan assets	$425	$412

401k_Plan_Details

401(k) Plan (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
401(k) Plan
Employer matching contribution recorded	$740	$746

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Loss (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Reclassifications from OCI to:
Balance at the end of the period	($34,128)	($27,714)	($18,714)
Investment securities.
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	-54	-3	-8
Other comprehensive income (loss) before reclassifications net of tax	36	-51	5
Other comprehensive income (loss) (OCI) before reclassifications, tax effect	21	-28	0
Reclassifications from OCI to:
Other income, tax effect	0	0	0
Comprehensive income (loss), net of tax	36	-51	5
Comprehensive income (loss), tax effect	21	-28	0
Balance at the end of the period	-18	-54	-3
Currency Translation Adjustments
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	-23,253	-16,918	-13,109
Other comprehensive income (loss) before reclassifications net of tax	-12,312	-6,335	-3,809
Reclassifications from OCI to:
Balance at the end of the period	-35,565	-23,253	-16,918
Cash Flow Hedges
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	-3,829	-1,013	-4,524
Other comprehensive income (loss) before reclassifications net of tax	5,169	-7,291	-1,210
Other comprehensive income (loss) (OCI) before reclassifications, tax effect	1,511	-2,993	-954
Reclassifications from OCI to:
Comprehensive income (loss), net of tax	6,216	-2,816	3,511
Comprehensive income (loss), tax effect	-2,017	785	-1,506
Balance at the end of the period	2,387	-3,829	-1,013
Cash Flow Hedges \| Reclassification out of accumulated other comprehensive income
Reclassifications from OCI to:
Costs of revenue, net of tax	659	2,793	3,030
Costs of revenue, tax effect	321	1,377	1,578
Selling, general and administrative expenses, net of tax	388	1,682	1,691
Selling, general and administrative expenses, tax effect	185	831	882
Benefit plans
Changes in accumulated other comprehensive income (loss)
Balance at the beginning of the period	-578	-780	-702
Other comprehensive income (loss) before reclassifications net of tax	-477	37	-175
Other comprehensive income (loss) (OCI) before reclassifications, tax effect	-16	0	0
Reclassifications from OCI to:
Balance at the end of the period	-932	-578	-780
Benefit plans, prior service credit (cost) \| Reclassification out of accumulated other comprehensive income
Reclassifications from OCI to:
Costs of revenue, net of tax	66	71	56
Costs of revenue, tax effect	2	0	0
Selling, general and administrative expenses, net of tax	45	19	37
Selling, general and administrative expenses, tax effect	2	0	0
Benefit plans, net actuarial gain (loss) \| Reclassification out of accumulated other comprehensive income
Reclassifications from OCI to:
Costs of revenue, net of tax	8	8	6
Costs of revenue, tax effect	0	0	0
Selling, general and administrative expenses, net of tax	2	2	4
Selling, general and administrative expenses, tax effect	0	0	0
Other adjustments	2	65	-6
Comprehensive income (loss), net of tax	-354	202	-78
Comprehensive income (loss), tax effect	($12)	$0	$0

Commitments_Contingencies_and_2

Commitments, Contingencies and Guarantees (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified	Mar. 31, 2015
Operating Leases
2016	$7,502
2017	7,308
2018	5,358
2019	2,031
2020	1,280
2021 and thereafter	1,325
Total minimum lease payments	24,804
Capital Leases
2016	118
2017	115
2018	58
2019	12
Total minimum lease payments	303
Less: amount representing interest	47
Present value of future lease payments	256
Less: current portion	91
Long term capital lease obligation	$165

Commitments_Contingencies_and_3

Commitments, Contingencies and Guarantees (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Commitments, Contingencies and Guarantees
Total rental expense for operating leases	$8,015	$6,535	$5,367
Amortization expenses for assets purchased under capital leases	$77	$17	$6

Commitments_Contingencies_and_4

Commitments, Contingencies and Guarantees (Details 3) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified	Mar. 31, 2015
Indemnification agreement
Loss contingencies
Liability recorded	$0
Actual or alleged act, error, omission, neglect, misstatement or misleading statement or breach of duty
Loss contingencies
Liability recorded	$0

Derivative_Financial_Instrumen2

Derivative Financial Instruments and Trading Activities (Details) (Foreign currency exchange contracts, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Derivative Financial Instruments and Trading Activities
Number of hedging programs maintained	3
Maximum outstanding term of derivative instruments	33 months
U.S. dollar notional equivalent market value	$121,380	$102,801
Derivatives designated as hedging instruments
Derivative Financial Instruments and Trading Activities
Period hedged by Cash Flow Program	36 months
Additional period after which the contract is deemed ineffective	2 months
Unrealized net gains related to derivative instruments expected to be reclassified from AOCI into earnings during the next 12 months	2,102
Other current assets	3,285	398
Other long-term assets	1,359	586
Accrued expenses and other	1,183	3,925
Long-term liabilities	619	2,449
Derivatives designated as hedging instruments \| Cash Flow Hedges \| Reclassification out of accumulated other comprehensive income
Derivative Financial Instruments and Trading Activities
Amount reclassified to earnings as a result of hedge ineffectiveness	$0	$0
Derivatives not Designated as Hedging Instrument
Derivative Financial Instruments and Trading Activities
Maturity period of Balance Sheet Program derivatives	30 days
Maximum outstanding term of derivative instruments	92 days

Derivative_Financial_Instrumen3

Derivative Financial Instruments and Trading Activities (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Costs of revenue
Derivative Financial Instruments
Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	($980)	($4,170)
Operating expenses
Derivative Financial Instruments
Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	-573	-2,513
Derivatives designated as hedging instruments \| Foreign currency exchange contracts
Derivative Financial Instruments
Amount of Gain or (Loss) Recognized in AOCI on Derivatives (Effective Portion)	6,680	-10,284
Derivatives not Designated as Hedging Instrument \| Foreign currency exchange contracts \| Foreign currency transaction gains (losses)
Derivative Financial Instruments
Amount of Gain or (Loss) Recognized in Income on Derivatives	66	-2,388
Derivatives not Designated as Hedging Instrument \| Foreign currency exchange contracts \| Revenue
Derivative Financial Instruments
Amount of Gain or (Loss) Recognized in Income on Derivatives	-389	-847
Derivatives not Designated as Hedging Instrument \| Foreign currency exchange contracts \| Costs of revenue
Derivative Financial Instruments
Amount of Gain or (Loss) Recognized in Income on Derivatives	-279	343
Derivatives not Designated as Hedging Instrument \| Foreign currency exchange contracts \| Selling, general and administrative expenses
Derivative Financial Instruments
Amount of Gain or (Loss) Recognized in Income on Derivatives	($93)	$50

Business_Segment_Information_D

Business Segment Information (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Business Segment Information
Consolidated revenue	$126,016	$122,996	$117,700	$112,274	$111,100	$101,043	$94,301	$90,489	$478,986	$396,933	$333,175
Consolidated long-lived assets, net	110,257				117,455				110,257	117,455
North America
Business Segment Information
Consolidated revenue									319,285	278,318	251,219
Consolidated long-lived assets, net	59,316				61,562				59,316	61,562
Asia
Business Segment Information
Consolidated long-lived assets, net	32,896				32,235				32,896	32,235
Europe
Business Segment Information
Consolidated revenue									129,904	97,178	65,863
Consolidated long-lived assets, net	18,045				23,658				18,045	23,658
Rest of world
Business Segment Information
Consolidated revenue									$29,797	$21,437	$16,093

Quarterly_Results_of_Operation2

Quarterly Results of Operations (unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Quarterly Results of Operations (unaudited)
Revenue	$126,016	$122,996	$117,700	$112,274	$111,100	$101,043	$94,301	$90,489	$478,986	$396,933	$333,175
Costs of revenue	79,722	77,144	74,968	72,588	68,407	63,821	60,503	57,802	304,422	250,533	215,866
Gross profit	46,294	45,852	42,732	39,686	42,693	37,222	33,798	32,687	174,564	146,400	117,309
Operating expenses	31,816	31,233	30,491	28,456	30,182	26,026	24,022	23,758	121,996	103,988	84,450
Income from operations	14,478	14,619	12,241	11,230	12,511	11,196	9,776	8,929	52,568	42,412	32,859
Other income	1,221	1,360	1,257	994	1,116	1,155	105	1,136	4,832	3,512	3,000
Income before income tax expense	15,699	15,979	13,498	12,224	13,627	12,351	9,881	10,065	57,400	45,924	35,859
Income tax expense	4,149	4,200	3,384	3,221	3,580	3,023	2,403	2,543	14,954	11,549	7,461
Net income	$11,550	$11,779	$10,114	$9,003	$10,047	$9,328	$7,478	$7,522	$42,446	$34,375	$28,398
Basic earnings per share	$0.40	$0.41	$0.35	$0.32	$0.36	$0.36	$0.29	$0.30	$1.48	$1.32	$1.14
Diluted earnings per share	$0.39	$0.40	$0.34	$0.31	$0.35	$0.35	$0.28	$0.29	$1.44	$1.27	$1.11

Subsequent_Events_Details

Subsequent Events (Details)

12 Months Ended

0 Months Ended

In Thousands, except Share data, unless otherwise specified

Mar. 31, 2015

Mar. 31, 2014

Mar. 31, 2013

8-May-15

Apr. 24, 2015

7-May-15

Apr. 01, 2015

USD ($)

Subsequent event

Apparatus

Milestone achievement

Derivatives designated as hedging instruments

Subsequent event

Virtusa

Apparatus

Bonus Pool

Foreign currency forward contracts

USD ($)

Maximum

Subsequent event

Apparatus

U.S. Dollar and U.K. Pound Sterling Forward Contract

U.S. dollar and Swedish Krona ("SEK") Forward Contract

U.S. dollar and Euro ("EUR") Forward Contract

U.S. Dollar and Indian Rupee Forward Contract

U.K. Pound Sterling and Indian Rupee Forward Contract

USD ($)

Subsequent event

USD ($)

GBP (£)

USD ($)

GBP (£)

USD ($)

SEK

USD ($)

EUR (€)

USD ($)

INR

USD ($)

GBP (£)

INR

USD ($)

Subsequent Events

Purchase price in cash

$34,200

Additional consideration

1,700

1,500

Percentage of revenue recognition milestone

100

Hold back percentage

8.50%

Hold back period

12 months

Authorized value of awards

11,098

8,166

5,876

3,500

Number of authorized shares

93,333

Vesting period

4 years

Aggregate notional amount of foreign currency forward contracts

$2,915

£ 1,902

$4,470

£ 2,961

$527

4,341

$757

€ 675

$12,824

884,253

£ 6,295

662,388

Weighted average settlement rate

1.53

1.51

0.121

1.121

69.21

105.44

Foreign currency forward contracts expiration period

36 months

Spot rate

1.52

Weighted average blended rate

69.05

Schedule_IIValuation_and_Quali1

Schedule II-Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Valuation and Qualifying Accounts
Balance at Beginning of Period	$1,130	$740	$582
Charged to Costs and Expenses	-134	539	193
Deductions/ Other	-115	-149	-35
Balance at End of Period	$881	$1,130	$740