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Goodwill and Intangible Assets - Intangible Assets by Major Asset Class (Detail) - USD ($)
 9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Intangible Assets By Major Class [Line Items]    
Gross $ 524,921,000 $ 539,322,000
Accumulated Amortization 49,948,000 45,899,000
Net Book Value 474,973,000 493,423,000
Finite-lived intangible assets, translation and purchase accounting adjustments 9,603,000  
Indefinite-lived intangible assets, translation and purchase accounting adjustments 1,554,000  
Patents    
Intangible Assets By Major Class [Line Items]    
Gross 31,581,000 31,581,000
Accumulated Amortization 31,581,000 31,581,000
Net Book Value $ 0 0
Patents | Minimum    
Intangible Assets By Major Class [Line Items]    
Useful Life (years) 2 years  
Patents | Maximum    
Intangible Assets By Major Class [Line Items]    
Useful Life (years) 16 years  
Customer and distributor relationships and other    
Intangible Assets By Major Class [Line Items]    
Gross $ 55,794,000 53,904,000
Accumulated Amortization 18,367,000 14,318,000
Net Book Value $ 37,427,000 39,586,000
Customer and distributor relationships and other | Minimum    
Intangible Assets By Major Class [Line Items]    
Useful Life (years) 1 year  
Customer and distributor relationships and other | Maximum    
Intangible Assets By Major Class [Line Items]    
Useful Life (years) 10 years  
Trade name, trademark and trade dress and other    
Intangible Assets By Major Class [Line Items]    
Gross $ 437,546,000 453,837,000
Net Book Value $ 437,546,000 $ 453,837,000