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Intangible Assets (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Intangible Assets [Line Items]    
Indefinite lived intangible assets—Trade names, trademarks and distribution rights $ 138,647 $ 119,188
Finite lived intangible assets:    
Accumulated amortization (49,384) (43,680)
Finite lived intangible assets, net 33,357 28,663
Intangible assets, net 172,004 147,851
Customer Relationships    
Finite lived intangible assets:    
Finite lived intangible assets $ 79,911 69,593
Customer Relationships | Maximum    
Intangible Assets [Line Items]    
Finite lived intangible assets, Estimated Useful lives, years 18 years  
Customer Relationships | Minimum    
Intangible Assets [Line Items]    
Finite lived intangible assets, Estimated Useful lives, years 7 years  
Trade Name    
Intangible Assets [Line Items]    
Finite lived intangible assets, Estimated Useful lives, years 10 years  
Finite lived intangible assets:    
Finite lived intangible assets $ 1,150 1,150
Patented And Unpatented Technology [Member]    
Intangible Assets [Line Items]    
Finite lived intangible assets, Estimated Useful lives, years 7 years  
Finite lived intangible assets:    
Finite lived intangible assets $ 1,680 $ 1,600