Supplemental Cash Flow Information (Cash Payments for Interest and Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Supplemental Cash Flow Elements [Abstract]
Interest paid (net of capitalized interest)	$ 7,066	$ 8,301	$ 9,909
Income taxes paid	28,252	36,637	9,576
Purchases of property and equipment	(327)	3,873	3,769
Purchases of capitalized software	$ (2,806)	$ 2,183	$ 1,114