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Costs Associated with Exit and Restructuring Activities - Exit and Restructuring Costs (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended 21 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Dec. 31, 2012
Sep. 28, 2013
Restructuring And Related Activities [Abstract]            
Severance, stay bonuses, and other employee-related expenses $ 440   $ 3,338   $ 960 $ 4,298
Professional services 91   157   0 157
Relocation and transition costs (12)   20   0 20
Total $ 519 $ 0 $ 3,515 $ 0 $ 960 $ 4,475