Goodwill and Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 75,142	$ 66,096
Accumulated Amortization	(28,441)	(26,603)
Net Carrying Amount	46,701	39,493
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,518	12,014
Accumulated Amortization	(2,952)	(2,595)
Net Carrying Amount	10,566	9,419
Distribution agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,626	5,626
Accumulated Amortization	(3,366)	(2,853)
Net Carrying Amount	2,260	2,773
License agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,448	19,109
Accumulated Amortization	(3,113)	(2,438)
Net Carrying Amount	17,335	16,671
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,369	7,259
Accumulated Amortization	(3,080)	(2,554)
Net Carrying Amount	9,289	4,705
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,021	1,028
Accumulated Amortization	(912)	(873)
Net Carrying Amount	109	155
Customer lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	21,893	20,793
Accumulated Amortization	(14,751)	(15,023)
Net Carrying Amount	7,142	5,770
Royalty agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	267	267
Accumulated Amortization	(267)	(267)
Net Carrying Amount	$ 0	$ 0