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Income Taxes (Reconciliation of The Federal Statutory Tax Rate With The Effective Tax Rate) (Details)	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Jan. 01, 2016
Income Tax Disclosure [Abstract]
U.S statutory income tax expense rate	35.00%	35.00%	35.00%
State income taxes, net of federal income tax expense	1.40%	3.30%	3.00%
Valuation reduction	(0.20%)	(0.70%)	(0.80%)
Tax reform impact on deferred taxes	(13.40%)
Meals and entertainment	0.90%	0.80%	1.20%
Foreign rate differential	(3.70%)	(1.80%)	(3.10%)
Shared based compensation	(11.40%)
Foreign exchange loss	0.30%	0.10%	(0.20%)
Other, net	0.60%	0.20%	0.70%
Effective tax rate	9.50%	36.90%	35.80%

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Effective income tax rate reconciliation foreign exchange gain loss.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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