Fair Value Measurement - Non-Financial Assets Measured and Recorded at Fair Value on a Non-Recurring (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2013	Dec. 31, 2012
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Intangible assets, other than goodwill and in-process research and development	$ 43,179	$ 47,538
Long-lived assets	89,480	93,725
Carrying Value [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Intangible assets, other than goodwill and in-process research and development	244
Long-lived assets	11,460
Quoted Prices in Active Markets for Identical (Level 1) [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Intangible assets, other than goodwill and in-process research and development
Long-lived assets
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Intangible assets, other than goodwill and in-process research and development
Long-lived assets
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Intangible assets, other than goodwill and in-process research and development	244
Long-lived assets	11,460
Loss during the period [Member]
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Intangible assets, other than goodwill and in-process research and development	233
Long-lived assets	$ 2,926