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RESTRUCTURING AND ASSET IMPAIRMENTS - Rollforward of Severance and Transition Costs Liability (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Restructuring Reserve [Roll Forward]
Beginning balance	$ 7,199	$ 2,758	$ 6,405	$ 2,921
Expense (excluding non-cash charges)	1,069	2,653	7,943	5,508
Payments / utilization	(1,592)	(1,604)	(7,509)	(4,608)
Foreign currency adjustments	42	(24)	(121)	(38)
Ending balance	$ 6,718	$ 3,783	$ 6,718	$ 3,783

X

- Definition

Restructuring Reserve, Payments for Restructuring and Settled without Cash

+ References

No definition available.

+ Details

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X

- Definition

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Publisher FASB
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-Section S99
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-Subparagraph (SAB Topic 5.P.4(b)(1))
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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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