ACQUISITIONS - Major Classes of Valmont SM's Acquired Intangible Assets Narrative (Details) - Shakespeare Composite Structures $ in Thousands	Oct. 06, 2014 USD ($) facility
Business Acquisition [Line Items]
Cash paid to acquire business	$ 48,272
Number of manufacturing locations operated \| facility	2
Annual sales	$ 55,000

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Total revenue reported by the acquired entity for its previous full fiscal year before the business acquisition.

+ References

No definition available.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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- Definition

Represents the number of operating locations operated by the acquired entity.

+ References

No definition available.

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