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GOODWILL AND INTANGIBLE ASSETS (Details 5) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 26, 2015 $ / bbl | Dec. 26, 2015 USD ($) | Sep. 26, 2015 USD ($) | Jun. 27, 2015 USD ($) | Dec. 26, 2015 USD ($) $ / bbl
Goodwill [Line Items] |  |  |  |  |
Impairment of intangible assets |  | $ 19,600 |  |  |
Divestiture of business |  |  |  |  | $ 1,737
Goodwill impairment |  | 7,100 |  |  | $ 34,892
Average sales price of oil (in dollars per barrel) | $ / bbl | 40 |  |  |  |
Maximum |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Estimated future sales price of oil (in dollars per barrel) | $ / bbl |  |  |  |  | 50
Engineered Support Structures |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Divestiture of business |  |  |  | $ 1,737 | $ 1,737
Goodwill impairment |  |  |  |  | 0
Coatings |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Divestiture of business |  |  |  |  | 0
Goodwill impairment |  | 7,122 | $ 9,100 |  | 16,222
Energy and Mining Segment |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Divestiture of business |  |  |  |  | 0
Goodwill impairment |  | 18,670,000 |  |  | $ 18,670
Webforge | Engineered Support Structures |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Impairment of intangible assets |  | $ 830 | 5,000 |  |
Industrial Galvanizers | Coatings |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Impairment of intangible assets |  |  | $ 1,100 |  |

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