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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
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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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