Customers Representing Major Total Revenue and Accounts Receivable (Detail)	3 Months Ended			9 Months Ended
	Sep. 28, 2013	Sep. 30, 2012		Sep. 28, 2013		Sep. 30, 2012		Dec. 31, 2012
Customer A (distributor)
Concentration Risk [Line Items]
Percent of Net Revenue	55.00%	67.00%		53.00%		63.00%
Percent of Accounts Receivable	48.00%			48.00%				50.00%
Customer B (distributor)
Concentration Risk [Line Items]
Percent of Net Revenue	10.00%		[1]		[1]		[1]
Percent of Accounts Receivable	12.00%			12.00%					[1]

[1] Less than 10%