GOODWILL AND INTANGIBLE ASSETS - Rollforward of Goodwill (Details) $ in Thousands	3 Months Ended
Mar. 30, 2019 USD ($)
Changes in gross carrying amount and accumulated amortization of goodwill
December 29, 2018	$ 1,247,133
Foreign Exchange	(1,285)
March 30, 2019	1,245,848
RMS
Changes in gross carrying amount and accumulated amortization of goodwill
December 29, 2018	56,968
Foreign Exchange	278
March 30, 2019	57,246
DSA
Changes in gross carrying amount and accumulated amortization of goodwill
December 29, 2018	1,051,470
Foreign Exchange	(2,341)
March 30, 2019	1,049,129
Manufacturing
Changes in gross carrying amount and accumulated amortization of goodwill
December 29, 2018	138,695
Foreign Exchange	778
March 30, 2019	$ 139,473

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

Amount before 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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