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RESTRUCTURING AND ASSET IMPAIRMENTS - Restructuring Costs by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Segment Reporting Information [Line Items]
Restructuring costs	$ 8,351	$ 1,685	$ 8,909	$ 3,234
RMS
Segment Reporting Information [Line Items]
Restructuring costs	769	641	759	942
DSA
Segment Reporting Information [Line Items]
Restructuring costs	6,186	672	6,498	685
Manufacturing
Segment Reporting Information [Line Items]
Restructuring costs	$ 1,396	$ 372	$ 1,652	$ 1,607

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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- Definition

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