Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012
Income Taxes
Effective tax rate (as a percent)	23.80%	24.00%	24.30%	22.90%
Income Taxes
Total liability for unrecognized tax benefits which would impact the annual effective rate, if realized	$ 1,235		$ 1,235		$ 1,179
Increase (decrease) in unrecognized tax benefits	(35)		55
Unremitted earnings from foreign subsidiaries	121,374		121,374
Cash and short-term investments available for distribution if not permanently reinvested	$ 50,991		$ 50,991
India
Income Taxes
Number of subsidiaries which is export oriented			1
Statutory tax rate (as a percent)	32.50%	32.50%	32.50%	32.50%
India | Indian operations in areas designated as a SEZ
Income Taxes
Income tax exemption period			15 years
Number of subsidiaries eligible for tax holiday on export income			2
India | Virtusa India
Income Taxes
Income tax exemption period			10 years
Number of STPs operated			2
India | Virtusa India | Chennai
Income Taxes
Number of STPs operated			1
India | Virtusa India | Hyderabad
Income Taxes
Number of STPs operated			1
Sri Lanka | Virtusa (Private) Limited
Income Taxes
Income tax exemption period			12 years