Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Intangible assets, Accumulated amortization	$ (178,803)		$ (178,803)		$ (167,616)
Intangible assets, Gross carrying amount	608,699		608,699		582,556
Amortization expense	5,700	$ 5,200	11,200	$ 10,300
Future amortization expense [Abstract]
Remaining, 2018	11,946		11,946
2019	24,550		24,550
2020	24,567		24,567
2021	23,614		23,614
2022	22,139		22,139
2023	21,504		21,504
Expense
Future amortization expense [Abstract]
Remaining, 2018	8,946		8,946
2019	18,550		18,550
2020	18,567		18,567
2021	17,614		17,614
2022	16,139		16,139
2023	15,504		15,504
Reduction of Revenue
Future amortization expense [Abstract]
Remaining, 2018	3,000		3,000
2019	6,000		6,000
2020	6,000		6,000
2021	6,000		6,000
2022	6,000		6,000
2023	6,000		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		86,544
Customer and Distributor Relationships [Member]
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Amortized intangible assets, Gross carrying amount	214,616		214,616		214,685
Intangible assets, Accumulated amortization	(91,634)		(91,634)		(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		149,376
Intangible assets, Accumulated amortization	(39,000)		$ (39,000)		(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	70,031		$ 70,031		69,668
Intangible assets, Accumulated amortization	(43,177)		(43,177)		(42,127)
Technology-Based Intangible Assets [Member]
Schedule of Finite-Lived and Indefinite-Lived Assets [Line Items]
Amortized intangible assets, Gross carrying amount	88,132		88,132		62,283
Intangible assets, Accumulated amortization	$ (4,992)		(4,992)		$ (3,352)
Finite-lived intangible assets acquired			$ 25,800
Weighted average amortization period (in years)			14 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