Stockholders' Equity Accumulated Other Comprehensive Income (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 27, 2016	Sep. 29, 2015	Sep. 27, 2016	Sep. 29, 2015	Jun. 28, 2016	Dec. 29, 2015	Jun. 30, 2015	Dec. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (7,478,000)	$ (5,993,000)	$ (7,478,000)	$ (5,993,000)	$ (8,501,000)	$ (5,029,000)	$ (2,063,000)	$ (1,360,000)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	605,000	(3,930,000)	(2,867,000)	(4,633,000)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	418,000	0	418,000	0
Other Comprehensive Income (Loss), Net of Tax	1,023,000	(3,930,000)	(2,449,000)	(4,633,000)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,715,000)	(3,026,000)	(2,715,000)	(3,026,000)	(2,631,000)	(3,486,000)	(2,063,000)	(1,360,000)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(84,000)	(963,000)	771,000	(1,666,000)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax	(84,000)	(963,000)	771,000	(1,666,000)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(4,763,000)	(2,967,000)	(4,763,000)	(2,967,000)	$ (5,870,000)	$ (1,543,000)	$ 0	$ 0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	689,000	(2,967,000)	(3,638,000)	(2,967,000)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	418,000	0	418,000	0
Other Comprehensive Income (Loss), Net of Tax	$ 1,107,000	$ (2,967,000)	$ (3,220,000)	$ (2,967,000)