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DISCLOSURES ABOUT THE FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified | Dec. 28, 2013 | Dec. 29, 2012
--- | --- | ---
Assets and liabilities measured at fair value |  |
Assets recorded for the investments held | $ 27,133 | $ 20,087
Liabilities recorded for the investments held | 27,133 | 20,087
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets and liabilities measured at fair value |  |
Trading Securities | 41,043 | 20,087
Delta EMD Pty. Ltd. |  |
Assets and liabilities measured at fair value |  |
Fair value of remaining ownership | 13,910 |
Valmont Deferred Compensation Plan |  |
Assets and liabilities measured at fair value |  |
Assets recorded for the investments held | 27,133 | 20,087
Liabilities recorded for the investments held | 27,133 | 20,087
Carrying Value |  |
Assets and liabilities measured at fair value |  |
Long-term debt | 471,109 | 472,817
Trading Securities | 41,043 | 20,087
Estimated fair value |  |
Assets and liabilities measured at fair value |  |
Long-term debt | $ 517,807 | $ 541,559

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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 + Details
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