Stockholders' Equity Accumulated Other Comprehensive Income (Details) - USD ($)	12 Months Ended
	Dec. 27, 2016	Dec. 29, 2015	Dec. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (4,124,000)	$ (5,029,000)	$ (1,360,000)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(1,000)	(3,669,000)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	906,000	0
Other Comprehensive Income (Loss), Net of Tax	905,000	(3,669,000)
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	(2,784,000)	(3,486,000)	(1,360,000)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	702,000	(2,126,000)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Other Comprehensive Income (Loss), Net of Tax	702,000	(2,126,000)
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	(1,340,000)	(1,543,000)	$ 0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(703,000)	(1,543,000)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	906,000	0
Other Comprehensive Income (Loss), Net of Tax	$ 203,000	$ (1,543,000)