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Components of Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]    
In-process research and development $ 53,157  
Gross Carrying Amount 1,310,464 1,097,338
Accumulated Amortization (251,672) (217,551)
Customer list
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 580,151 537,094
Accumulated Amortization (141,520) (117,505)
Intellectual property
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 276,458 221,171
Accumulated Amortization (95,967) (85,402)
Distribution rights
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 16,567 16,669
Accumulated Amortization (13,880) (13,484)
Trade names
   
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 384,131 322,404
Accumulated Amortization $ (305) $ (1,160)