Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Apr. 05, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (102,167)	$ 7,059
Other Comprehensive Loss, Foreign Currency Translation Adjustment	(15,245)	(5,203)
Other Comprehensive Loss, Cash Flow Hedge	(6,140)	(3,306)
Other Comprehensive Income (Loss), Pension Liability Adjustment	1,733	(91)
Comprehensive Loss	$ (121,819)	$ (1,541)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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