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Intangibles - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Intangible Assets Disclosure [Line Items]      
Trade names $ 629,100   $ 603,400
Intangible assets, amortization expense $ 10,352 $ 9,044  
Patents      
Intangible Assets Disclosure [Line Items]      
Intangible assets, weighted average useful life (years) 10 years    
Customer Relationships      
Intangible Assets Disclosure [Line Items]      
Intangible assets, weighted average useful life (years) 17 years    
Other Intangibles      
Intangible Assets Disclosure [Line Items]      
Intangible assets, weighted average useful life (years) 15 years