Intangible Assets - Schedule of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Intangible assets subject to amortization [Line Items]
Useful life	8 years
Gross Carrying Amount	$ 86,928	$ 86,925
Accumulated Amortization	(40,164)	(32,245)
Currency Exchange	(7,471)	(7,000)
Net	39,293	47,680
Gross Carrying Amount	6,403	6,403
Currency Exchange	(668)	(512)
Net	5,735	5,891
Total Intangible Assets - Gross Carrying Amount	93,331	93,328
Total Intangible Assets - Accumulated Amortization	(40,164)	(32,245)
Total Intangible Assets - Currency Exchange and Other	(8,139)	(7,512)
Intangible assets, net	45,028	53,571
Trademarks and Trade Names
Intangible assets subject to amortization [Line Items]
Gross Carrying Amount	6,403	6,403
Currency Exchange	(668)	(512)
Net	5,735	5,891
Patents
Intangible assets subject to amortization [Line Items]
Gross Carrying Amount	11,815	11,812
Accumulated Amortization	(7,014)	(6,274)
Currency Exchange	(249)	(228)
Net	4,552	5,310
Patents | Minimum
Intangible assets subject to amortization [Line Items]
Useful life	5 years	5 years
Patents | Maximum
Intangible assets subject to amortization [Line Items]
Useful life	15 years	15 years
Software License
Intangible assets subject to amortization [Line Items]
Useful life	3 years	3 years
Gross Carrying Amount	1,212	1,212
Accumulated Amortization	(1,149)	(1,149)
Currency Exchange	(63)	(63)
Developed Technology
Intangible assets subject to amortization [Line Items]
Gross Carrying Amount	53,509	53,508
Accumulated Amortization	(25,799)	(20,654)
Currency Exchange	(5,808)	(5,516)
Net	21,902	27,338
Developed Technology | Minimum
Intangible assets subject to amortization [Line Items]
Useful life	2 years	2 years
Developed Technology | Maximum
Intangible assets subject to amortization [Line Items]
Useful life	10 years	10 years
Customer Relationships
Intangible assets subject to amortization [Line Items]
Useful life	12 years	12 years
Gross Carrying Amount	20,393	20,393
Accumulated Amortization	(6,202)	(4,168)
Currency Exchange	(1,351)	(1,193)
Net	$ 12,839	$ 15,032