Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Subsidiaries Total Virtusa Stockholders' Equity	Subsidiaries Additional Paid In Capital	Subsidiaries Redeemable Noncontrolling Interest	Subsidiaries	Total Virtusa Stockholders' Equity	Common Stock	Treasury Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Non-controlling interest	Redeemable Noncontrolling Interest	Total
Balance at Mar. 31, 2017					$ 497,032	$ 318	$ (9,652)	$ 305,387	$ 240,728	$ (39,749)	$ 87,984		$ 585,016
Balance (in shares) at Mar. 31, 2017						31,762,214	(1,856,703)
Increase (Decrease) in Stockholders' Equity
Proceeds from the exercise of stock options	$ 1,837	$ 1,837		$ 1,837	4,063	$ 3		4,060					4,063
Proceeds from the exercise of stock options (in shares)						322,317
Restricted stock awards vested						$ 4		(4)
Restricted stock awards vested (in shares)						384,561
Restricted stock awards withheld for tax					(7,173)			(7,173)					(7,173)
Share-based compensation					27,230			27,230					27,230
Repurchase of common stock					(30,000)		$ (30,000)						(30,000)
Repurchase of common stock (in shares)							(1,023,296)
Subsidiary share-based compensation					181			181					181
Other											(42)		(42)
Purchase of Polaris additional noncontrolling interest, net of transactions costs					(70,906)			(70,906)			(76,120)		(147,026)
Series A Convertible Preferred Stock dividends and accretion					(3,963)				(3,963)				(3,963)
Other comprehensive income (loss)					(932)					(932)	(2,056)
Other comprehensive income (loss)													(2,988)
Net income					1,254				1,254				1,254
Net income											7,694		(7,694)
Net income													8,948
Balance at Mar. 31, 2018					418,623	$ 325	$ (39,652)	260,612	238,019	(40,681)	17,460		436,083
Balance (in shares) at Mar. 31, 2018						32,469,092	(2,879,999)
Increase (Decrease) in Stockholders' Equity
Proceeds from the exercise of stock options	$ 259	$ 259	$ 54	$ 259	1,019	$ 1		1,018					1,019
Proceeds from the exercise of stock options (in shares)						101,618
Restricted stock awards vested						$ 4		(4)
Restricted stock awards vested (in shares)						442,065
Restricted stock awards withheld for tax					(12,094)			(12,094)					(12,094)
Share-based compensation					27,892			27,892					27,892
Subsidiary share-based compensation					34			34					34
Reclassification of previously recognized stock compensation related to liabilities classified awards for Polaris to liabilities					(619)			(619)					(619)
Cumulative effect of adopting ASC Topic 606, net of tax					464				464				464
Other					(115)			(115)			(290)		(405)
Adjustments of redeemable noncontrolling interest to redemption value					(37,779)			(37,779)			(16,450)	$ 55,508	(54,229)
Purchase of redeemable noncontrolling interest related to Polaris												(31,979)	31,979
Foreign currency translation on redeemable noncontrolling interest												(1,051)
Series A Convertible Preferred Stock dividends and accretion					(4,350)				(4,350)				(4,350)
Other comprehensive income (loss)					(18,706)					(18,706)	(1,466)	245
Other comprehensive income (loss)													(20,172)
Net income					16,146				16,146				16,146
Net income											746	799	(1,545)
Net income													16,892
Balance at Mar. 31, 2019					390,774	$ 330	$ (39,652)	239,204	250,279	(59,387)		23,576	$ 390,774
Balance (in shares) at Mar. 31, 2019						33,012,775	(2,879,999)						30,132,776
Increase (Decrease) in Stockholders' Equity
Proceeds from the exercise of stock options					468			468				16	$ 468
Proceeds from the exercise of stock options (in shares)						31,830
Restricted stock awards vested						$ 5		(5)
Restricted stock awards vested (in shares)						473,784
Restricted stock awards withheld for tax					(10,544)			(10,544)					(10,544)
Share-based compensation					15,683			15,683					15,683
Repurchase of common stock					(18,680)		$ (18,680)						$ (18,680)
Repurchase of common stock (in shares)							(505,565)						(505,565)
Adjustments of redeemable noncontrolling interest to redemption value					44			44				262	$ 44
Purchase of redeemable noncontrolling interest related to Polaris												(8,674)
Reclassification of noncontrolling interest from temporary equity to permanent equity											15,093	(15,093)	15,093
Reclassification of noncontrolling interest from permanent equity to liability.											(13,564)		(13,564)
Adjustments for reclassification of noncontrolling interest					2,012			2,012			(2,049)		(37)
Foreign currency translation on redeemable noncontrolling interest												(417)
Series A Convertible Preferred Stock dividends and accretion					(4,350)				(4,350)				(4,350)
Other comprehensive income (loss)					(25,868)					(25,868)	256	144
Other comprehensive income (loss)													(25,612)
Net income					47,902				47,902				47,902
Net income											$ 264	$ 186	(450)
Net income													48,166
Balance at Mar. 31, 2020					$ 397,441	$ 335	$ (58,332)	$ 246,862	$ 293,831	$ (85,255)			$ 397,441
Balance (in shares) at Mar. 31, 2020						33,518,389	(3,385,564)						30,132,825