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GOODWILL AND INTANGIBLE ASSETS - Rollforward of Company's Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Dec. 26, 2015 | Dec. 27, 2014
Goodwill [Roll Forward] |  |  |
Gross carrying amount, beginning balance | $ 1,443,829 | $ 1,326,077 |
Adjustments to Goodwill, Acquisitions |  |  |
Adjustments to Goodwill, Foreign Exchange |  |  |
Adjustments to Goodwill, Transfers |  |  |
Gross carrying amount, ending balance | 1,792,517 | 1,443,829 |
Goodwill | 787,517 | 438,829 | $ 321,077
RMS |  |  |
Goodwill [Roll Forward] |  |  |
Gross carrying amount, beginning balance | 58,167 | 59,196 |
Adjustments to Goodwill, Acquisitions | 0 | 0 |
Adjustments to Goodwill, Foreign Exchange | (1,428) | (1,029) |
Adjustments to Goodwill, Transfers | (342) |  |
Gross carrying amount, ending balance | 56,397 | 58,167 |
DSA |  |  |
Goodwill [Roll Forward] |  |  |
Gross carrying amount, beginning balance | 1,252,050 | 1,234,302 |
Adjustments to Goodwill, Acquisitions | 337,872 | 22,146 |
Adjustments to Goodwill, Foreign Exchange | (21,446) | (4,398) |
Adjustments to Goodwill, Transfers | 0 |  |
Gross carrying amount, ending balance | 1,568,476 | 1,252,050 |
Accumulated impairment loss - DSA | (1,005,000) | (1,005,000) | $ (1,005,000)
Manufacturing |  |  |
Goodwill [Roll Forward] |  |  |
Gross carrying amount, beginning balance | 133,612 | 32,579 |
Adjustments to Goodwill, Acquisitions | 46,859 | 105,567 |
Adjustments to Goodwill, Foreign Exchange | (13,169) | (4,534) |
Adjustments to Goodwill, Transfers | 342 |  |
Gross carrying amount, ending balance | $ 167,644 | $ 133,612 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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