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BUSINESS ACQUISITIONS AND DIVESTITURE - Contract Manufacturing, Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 01, 2017	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015	Feb. 10, 2017
Business Acquisition [Line Items]
Gain on divestiture		$ 10,577	$ 0	$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | CDMO Business
Business Acquisition [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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
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