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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2013 | Dec. 26, 2015 | Dec. 27, 2014 | Dec. 28, 2013
Long-lived assets |  |  |  |
Depreciation expense |  | $ 72,805 | $ 73,395 | $ 62,291
Melbourne galvenizing site equipment |  |  |  |
Long-lived assets |  |  |  |
Impairment of long-lived assets |  | $ 4,100 |  |
Delta EMD, Ltd. |  |  |  |
Long-lived assets |  |  |  |
Impairment of long-lived assets | $ 12,161 |  |  |
Buildings and improvements | Minimum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 15 years |  |
Buildings and improvements | Maximum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 40 years |  |
Machinery and equipment | Minimum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 3 years |  |
Machinery and equipment | Maximum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 12 years |  |
Transportation equipment | Minimum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 3 years |  |
Transportation equipment | Maximum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 24 years |  |
Office furniture and equipment | Minimum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 3 years |  |
Office furniture and equipment | Maximum |  |  |  |
Long-lived assets |  |  |  |
Estimated useful lives |  | 7 years |  |

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2611-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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