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BUSINESS ACQUISITIONS - Argenta and BioFocus, Additional Information (Details) - Agrenta and BioFocus $ in Thousands, € in Millions			12 Months Ended
	Apr. 01, 2015 USD ($)	Apr. 01, 2014 USD ($)	Dec. 27, 2014 USD ($)	Dec. 31, 2016 EUR (€)	Jun. 27, 2015 EUR (€)
Business Acquisition [Line Items]
Percentage of voting interests acquired		100.00%
Total purchase price allocation		$ 191,800
Contingent consideration		900
Gain on contingent consideration liability	$ 800
Maximum contingent consideration | €				€ 5.3	€ 5.0
Purchase price allocation		183,594
Cash acquired		8,200
Transaction and integration costs			$ 5,300
Revenue			71,400
Operating income (loss)			$ 1,800
Adjustments, including amortization of intangible assets and depreciation of fixed assets		$ 3,700

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