Net (Loss) Income per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Jan. 03, 2015	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net (loss) income attributable to stockholders	$ (45,454)	$ (24,862)	$ (35,570)	$ (53,347)	$ 15,419	$ 9,406	$ 11,771	$ 11,984	$ (159,233)	$ 48,580	$ 22,321
Shares used in basic Net (loss) income per share									117,387	117,708	115,701
Dilutive effect of stock options, RSUs and ESPP shares									0	2,537	1,380
Shares used in diluted Net (loss) income per share									117,387	120,245	117,081
Basic Net (loss) income per share	$ (0.38)	$ (0.21)	$ (0.30)	$ (0.46)	$ 0.13	$ 0.08	$ 0.10	$ 0.10	$ (1.36)	$ 0.41	$ 0.19
Diluted Net (loss) income per share	$ (0.38)	$ (0.21)	$ (0.30)	$ (0.46)	$ 0.13	$ 0.08	$ 0.10	$ 0.10	$ (1.36)	$ 0.40	$ 0.19
Stock options, RSU's and ESPP shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Aggregate antidilutive shares excluded from computation of diluted net (loss) income per share									9,200	2,600	7,800