| Component: (Network and Table) | |
|---|---|
| Network | 4040 - Disclosure - INVENTORIES (Details) (http://www.valmont.com/role/DisclosureInventoriesDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000102729 (http://www.sec.gov/CIK) |
| INVENTORIES | Period [Axis] | |
|---|---|---|
2013-12-28 | 2012-12-29 | |
INVENTORIES | ||
Raw materials and purchased parts | ||
Work-in-process | ||
Finished goods and manufactured goods | ||
Subtotal | ||
Less: LIFO reserve | ||
Net inventory | 380,000,000 | 412,384,000 |
Increase in operating income due to liquidating portion of LIFO inventories | ||