| Component: (Network and Table) | |
|---|---|
| Network | 2403402 - Disclosure - Inventories (Details) (http://www.blackbox.com/role/InventoriesDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000849547 (http://www.sec.gov/CIK) |
| Inventory Disclosure [Abstract] | Period [Axis] | |
|---|---|---|
2016-03-31 | 2015-03-31 | |
Inventory Disclosure [Abstract] | ||
Raw materials | ||
Finished goods | ||
Inventory, gross | ||
Excess and obsolete inventory reserves | ( | ( |
Inventories, net | 42,703,000 | 54,437,000 |