| Component: (Network and Table) | |
|---|---|
| Network | 1077 - Disclosure - Details of Certain Consolidated Balance Sheet Captions - Schedule of Other Liabilities (Detail) (http://cswindustrials.com/taxonomy/role/DisclosureDetailsOfCertainConsolidatedBalanceSheetCaptionsScheduleOfOtherLiabilities) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001624794 (http://www.sec.gov/CIK) |
| Other Liabilities, Noncurrent [Abstract] | Period [Axis] | |
|---|---|---|
2016-03-31 | 2015-03-31 | |
Other Liabilities, Noncurrent [Abstract] | ||
Contingent consideration | 5,854,000 | 5,115,000 |
Deferred income taxes | ||
Other | ||
Other liabilities | 11,820,000 | 7,710,000 |