Strategic Technology Transactions, Goodwill and Purchased Intangible Assets - Summary of Pro Forma Financial Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Goodwill And Intangible Assets Disclosure [Abstract]
Net sales, Pro Forma									$ 247,300	$ 306,043	$ 410,063
Net income (loss), Pro Forma									(33,418)	(12,296)	21,027
Net income (loss) per share:
Basic, Pro Forma									$ (1.34)	$ (0.50)	$ 0.87
Diluted, Pro Forma									$ (1.34)	$ (0.50)	$ 0.86
Net sales, Reported	64,670	59,962	66,652	56,016	50,714	57,748	59,404	53,296	247,300	221,162	308,968
Net income (loss), Reported	$ (6,450)	$ (10,820)	$ (4,045)	$ (12,103)	$ (5,161)	$ (1,749)	$ (2,109)	$ (3,224)	$ (33,418)	$ (12,243)	$ 15,719
Net income (loss) per share:
Basic, Reported	$ (0.26)	$ (0.43)	$ (0.16)	$ (0.49)	$ (0.21)	$ (0.07)	$ (0.09)	$ (0.13)	$ (1.34)	$ (0.50)	$ 0.65
Diluted, Reported	$ (0.26)	$ (0.43)	$ (0.16)	$ (0.49)	$ (0.21)	$ (0.07)	$ (0.09)	$ (0.13)	$ (1.34)	$ (0.50)	$ 0.64