Stock-Based Compensation (Employee Share Purchase Plan) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Proceeds from issuance of common shares	$ 0	$ 0	$ 94,080
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	3,674,298
Employee Stock Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock Issued During Period, Shares, Employee Stock Ownership Plan	61,796	82,841	55,024
Proceeds from issuance of common shares	$ 400	$ 400	$ 400
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	1,112,073