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GOODWILL AND INTANGIBLE ASSETS - Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 26, 2016 | Dec. 26, 2015
Goodwill |  |
Goodwill, Gross |  | $ 371,808
Carrying amount of goodwill |  |
Balance at the beginning of the period | $ 336,916 |
Balance at December 26, 2015 |  | (34,892)
Foreign currency translation | (2,647) |
Balance at the end of the period | 334,269 | 336,916
Engineered Support Structures Segment |  |
Goodwill |  |
Goodwill, Gross |  | 101,275
Carrying amount of goodwill |  |
Balance at the beginning of the period | 101,275 |
Foreign currency translation | (1,502) |
Balance at the end of the period | 99,773 | 101,275
Energy and Mining Segment [Member] |  |
Goodwill |  |
Goodwill, Gross |  | 99,829
Carrying amount of goodwill |  |
Balance at the beginning of the period | 81,159 |
Balance at December 26, 2015 |  | (18,670)
Foreign currency translation | (1,462) |
Balance at the end of the period | 79,697 | 81,159
Utility Support Structures Segment |  |
Goodwill |  |
Goodwill, Gross |  | 75,404
Carrying amount of goodwill |  |
Balance at the beginning of the period | 75,404 |
Foreign currency translation | 0 |
Balance at the end of the period | 75,404 | 75,404
Coatings Segment |  |
Goodwill |  |
Goodwill, Gross |  | 75,941
Carrying amount of goodwill |  |
Balance at the beginning of the period | 59,719 |
Balance at December 26, 2015 | (9,100) | (16,222)
Foreign currency translation | 290 |
Balance at the end of the period | 60,009 | 59,719
Irrigation Segment |  |
Goodwill |  |
Goodwill, Gross |  | 19,359
Carrying amount of goodwill |  |
Balance at the beginning of the period | 19,359 |
Foreign currency translation | 27 |
Balance at the end of the period | $ 19,386 | $ 19,359

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