Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Earnings Per Share [Abstract]
Net income	$ 204,101	$ 203,086	$ 252,417
Weighted average common shares used to calculate basic net income per share	272,097	284,502	288,018
2015 Warrants	0	0	16,434
Stock-based compensation	8,124	6,754	7,850
Weighted average common shares used to calculate diluted net income per share	280,221	291,256	312,302
Net income per share - basic (in usd per share)	$ 0.75	$ 0.71	$ 0.88
Net income per share - diluted (in usd per share)	$ 0.73	$ 0.70	$ 0.81