GOODWILL AND INTANGIBLE ASSETS - Carrying Amount of Goodwill by Segment (Details) $ in Thousands	9 Months Ended
Sep. 27, 2020 USD ($)
Goodwill [Roll Forward]
Balance - December 31, 2019	$ 319,349
Acquisitions	44,067
Adjustments to preliminary purchase price allocations	(6,983)
Balance - September 27, 2020	356,433
Manufacturing
Goodwill [Roll Forward]
Balance - December 31, 2019	268,402
Acquisitions	35,087
Adjustments to preliminary purchase price allocations	(8,708)
Balance - September 27, 2020	294,781
Distribution
Goodwill [Roll Forward]
Balance - December 31, 2019	50,947
Acquisitions	8,980
Adjustments to preliminary purchase price allocations	1,725
Balance - September 27, 2020	$ 61,652

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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-Publisher FASB
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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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