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Goodwill and Other Intangibles - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill $ 356,128 $ 355,614  
Intangible assets, gross foreign currency translation adjustments (12,000)    
Intangible assets, accumulated amortization foreign currency translation adjustments (11,000)    
Amortization expense 51,000 $ 50,000 $ 45,000
Future amortization expense, year 1 52,000    
Future amortization expense, year 2 52,000    
Future amortization expense, year 3 52,000    
Future amortization expense, year 4 52,000    
Future amortization expense, year 5 $ 52,000