Earnings per Share - Basic earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income available to Virtusa stockholders	$ 894	$ 5,834
Less: Series A Convertible Preferred Stock dividends and accretion	(1,087)	(1,087)
Net income (loss) available to Virtusa common stockholders	$ (193)	$ 4,747
Denominator:
Basic weighted average common shares outstanding (in shares)	30,168,174	30,167,910
Basic earnings (loss) per share available to Virtusa common stockholders (in dollars per share)	$ (0.01)	$ 0.16