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BUSINESS ACQUISITIONS AND DIVESTITURE - Contract Manufacturing, Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Feb. 10, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on divestiture		$ 0	$ 10,577
Disposal Group, Disposed of by Sale, Not Discontinued Operations | CDMO Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash received from divestiture				$ 75,000
Cash and cash equivalents transferred				600
Working capital adjustments				$ 300
Gain on divestiture	$ 10,600

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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