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RESTRUCTURING AND ASSET IMPAIRMENTS - Severance and Retention Costs by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021	Dec. 26, 2020
Segment Reporting Information [Line Items]
Total	$ 8,213	$ 6,856	$ 12,594
RMS
Segment Reporting Information [Line Items]
Total	1,007	7	845
DSA
Segment Reporting Information [Line Items]
Total	851	3,114	8,605
Manufacturing
Segment Reporting Information [Line Items]
Total	5,126	3,663	2,733
Unallocated corporate
Segment Reporting Information [Line Items]
Total	$ 1,229	$ 72	$ 411

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://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Topic 420
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-Section S99
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-URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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