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Goodwill and Other Intangible Assets, Net - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Apr. 06, 2017
Goodwill and Intangible Assets Disclosure [Line Items]        
Goodwill $ 1,148,302 $ 1,171,454 $ 604,714  
Amortization expense 27,600 $ 23,600 $ 13,200  
Expected amortization expense in 2019 27,200      
Expected amortization expense in 2020 26,600      
Expected amortization expense in 2021 25,100      
Expected amortization expense in 2022 24,600      
Expected amortization expense in 2023 $ 24,600      
Dispensing Systems Business Acquisition [Member]        
Goodwill and Intangible Assets Disclosure [Line Items]        
Goodwill       $ 511,000