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.

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Amount of loss from the write-down 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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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GOODWILL AND INTANGIBLE ASSETS - Impairment (Details) - USD ($)	3 Months Ended
	Mar. 28, 2020	Sep. 28, 2019	Dec. 28, 2019
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 422,514,000		$ 428,864,000
Hypothetical change in discount rate (percent)	1.00%
Goodwill impairment loss		$ 0
Access Systems
Indefinite-lived Intangible Assets [Line Items]
Goodwill			$ 42,300,000
Effect of change in discount rate on fair value of reporting unit	$ 15,000,000