Goodwill and Intangible Assets - Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 50,706	$ 47,805
Accumulated Amortization	(21,361)	(18,870)
Net Carrying Amount	29,345	28,935
Patents
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	9,921	9,302
Accumulated Amortization	(2,104)	(2,374)
Net Carrying Amount	7,817	6,928
Distribution agreements
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,376	5,176
Accumulated Amortization	(2,139)	(1,780)
Net Carrying Amount	3,237	3,396
License agreements and trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	6,327	3,783
Accumulated Amortization	(1,664)	(1,249)
Net Carrying Amount	4,663	2,534
Trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,313	7,622
Accumulated Amortization	(1,961)	(1,844)
Net Carrying Amount	5,352	5,778
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,029	1,029
Accumulated Amortization	(577)	(399)
Net Carrying Amount	452	630
Customer lists
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	20,473	20,626
Accumulated Amortization	(12,649)	(10,957)
Net Carrying Amount	7,824	9,669
Royalty agreements
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	267	267
Accumulated Amortization	(267)	(267)
Net Carrying Amount	$ 0	$ 0