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Segment, Geographic and Product Information - Information Regarding Long-Lived Assets in Geographic Areas (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Long-lived assets:    
Total long-lived assets $ 1,313,205 $ 1,200,069
United States [Member]    
Long-lived assets:    
Total long-lived assets 723,554 719,914
United Kingdom [Member]    
Long-lived assets:    
Total long-lived assets 444,777 367,681
Asia [Member]    
Long-lived assets:    
Total long-lived assets 83,715 57,626
Other Europe/MEA [Member]    
Long-lived assets:    
Total long-lived assets 26,753 23,917
France [Member]    
Long-lived assets:    
Total long-lived assets 15,855 12,294
Other Americas [Member]    
Long-lived assets:    
Total long-lived assets $ 18,551 $ 18,637