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Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Intangible assets, Accumulated amortization $ (173,135)   $ (167,616)
Intangible assets, Gross carrying amount 592,792   582,556
Amortization expense 5,500 $ 5,200  
Future amortization expense [Abstract]      
Remaining, 2018 17,517    
2019 23,443    
2020 23,460    
2021 22,507    
2022 21,048    
2023 20,403    
Expense      
Future amortization expense [Abstract]      
Remaining, 2018 13,017    
2019 17,443    
2020 17,460    
2021 16,507    
2022 15,048    
2023 14,403    
Reduction of Revenue      
Future amortization expense [Abstract]      
Remaining, 2018 4,500    
2019 6,000    
2020 6,000    
2021 6,000    
2022 6,000    
2023 6,000    
Trademarks and Tradenames      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Unamortized intangible assets, Gross carrying amount 86,544   86,544
Customer and Distributor Relationships [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Amortized intangible assets, Gross carrying amount 214,739   214,685
Intangible assets, Accumulated amortization (88,904)   (86,137)
Promotional, Marketing and Distribution Rights [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Amortized intangible assets, Gross carrying amount 149,376   149,376
Intangible assets, Accumulated amortization $ (37,500)   (36,000)
Weighted average amortization period (in years) 25 years    
Patents and Other Intangible Assets [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Amortized intangible assets, Gross carrying amount $ 69,850   69,668
Intangible assets, Accumulated amortization (42,646)   (42,127)
Technology-Based Intangible Assets [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Amortized intangible assets, Gross carrying amount 72,283   62,283
Intangible assets, Accumulated amortization (4,085)   $ (3,352)
Finite-lived intangible assets acquired $ 10,000    
Weighted average amortization period (in years) 15 years    
Weighted Average      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Finite-lived intangible asset useful life (in years) 24 years    
Weighted Average | Customer and Distributor Relationships [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Finite-lived intangible asset useful life (in years) 29 years    
Weighted Average | Promotional, Marketing and Distribution Rights [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Finite-lived intangible asset useful life (in years) 25 years    
Weighted Average | Patents and Other Intangible Assets [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Finite-lived intangible asset useful life (in years) 14 years    
Weighted Average | Technology-Based Intangible Assets [Member]      
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]      
Finite-lived intangible asset useful life (in years) 16 years