Net Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Earnings Per Share, Basic and Diluted [Abstract]
Net income	$ 23,263	$ 9,429	$ 56,333	$ 88,038
Weighted-average common shares used to calculate basic net income per share (in shares)	283,344	277,146	282,480	276,018
Convertible notes	0	11	0	11
2015 Warrants	15,054	10,871	13,815	10,770
Stock-based awards	7,357	6,415	7,100	6,475
Weighted average common shares used to calculate diluted net income per share (in shares)	305,755	294,443	303,395	293,274
Net income per share - basic (in usd per share)	$ 0.08	$ 0.03	$ 0.20	$ 0.32
Net income per share - diluted (in usd per share)	$ 0.08	$ 0.03	$ 0.19	$ 0.30