Performance Unit Plan Activity (Detail) (Performance Units, USD $)	9 Months Ended	12 Months Ended
	Sep. 28, 2013	Dec. 31, 2012
Performance Units
PUPS Available for Grant
Shares available for future grants, beginning balance	218,160
Settled
Cancelled	347,040
Termination of the Plan	(565,200)
Shares available for future grants, ending balance		218,160
Number of PUPS
Number of outstanding, Beginning Balances	1,404,812
Number of outstanding, Settled	(1,057,772)
Number of outstanding, Cancelled	(347,040)
Number of outstanding, Termination of the Plan
Number of outstanding, Ending Balance		1,404,812
Weighted-Average Base Price
Weighted-Average Base Price, Beginning Balances	$ 0.15
Weighted-Average Base Price, Settled	$ 0.15
Weighted-Average Base Price, Cancelled	$ 0.15
Weighted-Average Base Price, Termination of the Plan	$ 0.15
Base Price		$ 0.15
Number Outstanding		1,404,812
Weighted Average Remaining Contractual Life (in Years)		7 years 11 months 16 days
Number Vested		862,922