Stockholders' Equity Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning of year			$ (70,823)	$ (31,294)
Current-period other comprehensive income (loss)	$ (2,925)	$ (16,950)	12,163	(32,089)
Balance, end of the period	(58,660)	(63,383)	(58,660)	(63,383)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	444	435	1,332	435
Interest Expense [Member]
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Before Tax	723	708	2,170	708
Provision for income taxes [Member]
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(279)	(273)	(838)	(273)
Foreign Currency Translation
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning of year			(66,163)	(28,363)
Current-period other comprehensive income (loss)			10,887	(29,879)
Balance, end of the period	(55,276)	(58,242)	(55,276)	(58,242)
Cash Flow Hedges
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning of year			(3,571)	(2,044)
Current-period other comprehensive income (loss)			1,332	(2,007)
Balance, end of the period	(2,239)	(4,051)	(2,239)	(4,051)
Pension
Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Balance, beginning of year			(1,089)	(887)
Current-period other comprehensive income (loss)			(56)	(203)
Balance, end of the period	$ (1,145)	$ (1,090)	$ (1,145)	$ (1,090)