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BUSINESS ACQUISITIONS - KWS BioTest Limited Purchase Price Allocation (Details) - USD ($) $ in Thousands	Mar. 30, 2019	Dec. 29, 2018	Apr. 03, 2018	Jan. 11, 2018
Business Acquisition [Line Items]
Trade receivables, contractual amount			$ 35,073
Goodwill	$ 1,245,848	$ 1,247,133
KWS BioTest Limited
Business Acquisition [Line Items]
Trade receivables, contractual amount				$ 1,309
Trade receivables				1,309
Other current assets (excluding cash)				99
Property, plant and equipment				1,136
Definite-lived intangible assets - client relationships				3,647
Goodwill				17,660
Current liabilities				(1,575)
Deferred revenue				(151)
Other long-term liabilities				(596)
Total purchase price allocation				$ 21,529

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