Estimated Future Amortization of Existing Acquired Intangible Assets, Excluding IPR&D (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2012
Finite-Lived Intangible Assets [Line Items]
Expected Amortization of Intangibles, Remainder of 2013	$ 1,020
Expected Amortization of Intangibles, 2014	1,197
Expected Amortization of Intangibles, 2015	1,197
Expected Amortization of Intangibles, 2016	1,197
Expected Amortization of Intangibles, 2017	1,197
Expected Amortization of Intangibles, Thereafter	6,533
Expected Amortization of Intangibles, Total	12,341
Cost of Goods Sold
Finite-Lived Intangible Assets [Line Items]
Expected Amortization of Intangibles, Remainder of 2013	736
Expected Amortization of Intangibles, 2014	983
Expected Amortization of Intangibles, 2015	983
Expected Amortization of Intangibles, 2016	983
Expected Amortization of Intangibles, 2017	983
Expected Amortization of Intangibles, Thereafter	6,242
Expected Amortization of Intangibles, Total	10,910
Selling, General and Administrative
Finite-Lived Intangible Assets [Line Items]
Expected Amortization of Intangibles, Remainder of 2013	284
Expected Amortization of Intangibles, 2014	214
Expected Amortization of Intangibles, 2015	214
Expected Amortization of Intangibles, 2016	214
Expected Amortization of Intangibles, 2017	214
Expected Amortization of Intangibles, Thereafter	291
Expected Amortization of Intangibles, Total	$ 1,431