v2.4.0.6
Intangible Assets (Details 1) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 29, 2012
Jul. 01, 2011
Jun. 29, 2012
Jul. 01, 2011
Finite-Lived Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Amortization Expense $ 3,616 $ 2,622 $ 7,208 $ 5,076
Future Amortization Expense, Remainder of Fiscal Year     7,161  
Future Amortization Expense, Year Two     13,616  
Future Amortization Expense, Year Three     13,615  
Future Amortization Expense, Year Four     12,513  
Future Amortization Expense, Year Five     10,198  
Future Amortization Expense, after Year Five     38,259  
Finite-Lived Intangible Assets, Future Amortization Expense     95,362  
Cost of Sales [Member]
        
Finite-Lived Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Amortization Expense 1,900 1,648 3,795 3,149
Selling General And Administrative Expense [Member]
        
Finite-Lived Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Amortization Expense 1,579 974 3,140 1,927
Research and Development Expense [Member]
        
Finite-Lived Intangible Assets [Line Items]        
Finite-Lived Intangible Assets, Amortization Expense $ 137 $ 0 $ 273 $ 0