Property and Equipment Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Property, Plant and Equipment [Abstract]
Depreciation	$ 21,970	$ 20,502	$ 18,046
Furniture and equipment	82,070	79,337
Computer software and hardware	103,640	95,574
Leasehold improvements	81,149	77,775
Land and building	0	600
Property and equipment, at cost	266,859	253,286
Accumulated depreciation and amortization	(184,342)	(171,725)
Property and equipment, net	$ 82,517	$ 81,561