Basic and Diluted Net Income (Loss) Per Common Share Basic and Diluted Net Income (Loss) Per Common Share - Computation of Net Loss Per Common Share Basic and Diluted (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Earnings Per Share [Abstract]
Net income (loss)	$ 3,347	$ (19,081)	$ (21,941)	$ (69,242)
Basic weighted average common shares outstanding (shares)	118,740	111,579	116,653	110,216
Employee equity plans (shares)	5,939	0	0	0
Diluted (shares)	124,679	111,579	116,653	110,216
Basic (USD per share)	$ 0.03	$ (0.17)	$ (0.19)	$ (0.63)
Diluted (USD per share)	$ 0.03	$ (0.17)	$ (0.19)	$ (0.63)