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Long-Lived Assets by Geographic Area (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Schedule Of Geographical Information [Line Items]    
Long-lived assets $ 784,059 $ 790,753
U S
   
Schedule Of Geographical Information [Line Items]    
Long-lived assets 201,147 202,461
Israel
   
Schedule Of Geographical Information [Line Items]    
Long-lived assets 89,907 92,610
Sweden
   
Schedule Of Geographical Information [Line Items]    
Long-lived assets 492,301 494,895
Rest of World
   
Schedule Of Geographical Information [Line Items]    
Long-lived assets $ 704 $ 787