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EQUITY AND NONCONTROLLING INTEREST - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
Other comprehensive loss before reclassifications			$ (13,592)
Amounts reclassified from accumulated other comprehensive loss			1,864
Net current period other comprehensive (loss) income			(11,728)
Amount reclassified from accumulated other comprehensive loss due to adoption of ASU 2018-02 (See Note 1)			3,330
Income tax (benefit) expense	$ 257	$ 153	(341)	$ 776
Foreign Currency Translation Adjustment and Other
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
December 30, 2017			(77,545)
Other comprehensive loss before reclassifications			(13,592)
Amounts reclassified from accumulated other comprehensive loss			0
Net current period other comprehensive (loss) income			(13,592)
Amount reclassified from accumulated other comprehensive loss due to adoption of ASU 2018-02 (See Note 1)			0
Income tax (benefit) expense			(801)
September 29, 2018	(90,336)		(90,336)
Pension and Other Post-Retirement Benefit Plans
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
December 30, 2017			(67,186)
Other comprehensive loss before reclassifications			0
Amounts reclassified from accumulated other comprehensive loss			1,864
Net current period other comprehensive (loss) income			1,864
Amount reclassified from accumulated other comprehensive loss due to adoption of ASU 2018-02 (See Note 1)			3,330
Income tax (benefit) expense			460
September 29, 2018	(69,112)		(69,112)
Total
Accumulated Other Comprehensive Income (Loss), before Tax [Roll Forward]
December 30, 2017			(144,731)
September 29, 2018	$ (159,448)		$ (159,448)

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Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings, Tax Effect

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Amount before tax and reclassification adjustments of other comprehensive income (loss).

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Amount before tax, after reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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