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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) (USD $) In Thousands, unless otherwise specified | Sep. 27, 2014 | Dec. 28, 2013
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Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets and liabilities measured at fair value |  |
Trading Securities | $ 44,603 | $ 41,043
Carrying Value |  |
Assets and liabilities measured at fair value |  |
Trading Securities | 44,603 | 41,043
Delta EMD Pty. Ltd. |  |
Assets and liabilities measured at fair value |  |
Fair value of remaining ownership | 8,295 | 13,910
Valmont Deferred Compensation Plan |  |
Assets and liabilities measured at fair value |  |
Assets recorded for the investments held | 36,308 | 27,133
Liabilities recorded for the investments held | $ 36,308 | $ 27,133

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