| Component: (Network and Table) | |
|---|---|
| Network | 2430404 - Disclosure - Segment Information - Schedule of Long-Lived Assets by Geographic Area (Detail) (http://www.commvault.com/role/SegmentInformationScheduleOfLongLivedAssetsByGeographicAreaDetail) |
| Table | Reconciliation of Assets from Segment to Consolidated [Table] |
| Reporting Entity [Axis] | 0001169561 (http://www.sec.gov/CIK) |
| Segment Reporting, Asset Reconciling Item [Line Items] | Period [Axis] | |||||
|---|---|---|---|---|---|---|
2016-03-31 | 2015-03-31 | |||||
| Geographical | Geographical | |||||
| United States | Other | Segment, Geographical [Domain] | United States | Other | Segment, Geographical [Domain] | |
Long-lived assets | ||||||