SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Comprehensive Income (Details) $ in Thousands	9 Months Ended
	Sep. 24, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	$ (267,218)
Balance at the end of the period	(265,969)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(191,928)
Current-period comprehensive income (loss)	(14,070)
Balance at the end of the period	(205,998)
Gain on Hedging Activities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	3,678
Current-period comprehensive income (loss)	4,953
Balance at the end of the period	8,631
Defined Benefit Pension Plan
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(78,968)
Current-period comprehensive income (loss)	10,366
Balance at the end of the period	(68,602)
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at the beginning of the period	(267,218)
Current-period comprehensive income (loss)	1,249
Balance at the end of the period	$ (265,969)