| Cover | Nov. 20, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 20, 2020 |
| Entity File Number | 001-33625 |
| Entity Registrant Name | VIRTUSA CORPORATION |
| Entity Central Index Key | 0001207074 |
| Entity Tax Identification Number | 04-3512883 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 132 Turnpike Rd |
| Entity Address, City or Town | Southborough |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01772 |
| City Area Code | 508 |
| Local Phone Number | 389-7300 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 par value per share |
| Trading Symbol | VRTU |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
