ACQUISITIONS - Major Classes of Valmont SM's Acquired Intangible Assets Table (Details) - Valmont SM $ in Thousands	Mar. 03, 2014 USD ($)
Major classes of acquired intangible assets and weighted-average amortization periods
Amount	$ 30,340
Backlog
Major classes of acquired intangible assets and weighted-average amortization periods
Amount	$ 3,145
Weighted Average Amortization Period (Years)	1 year 6 months
Customer Relationships
Major classes of acquired intangible assets and weighted-average amortization periods
Amount	$ 15,725
Weighted Average Amortization Period (Years)	12 years
Trade Names
Major classes of acquired intangible assets and weighted-average amortization periods
Amount	$ 11,470