Goodwill and Other Intangible Assets - Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization	$ (15,037)	$ (10,984)
Finite-lived intangible assets, net	48,136	51,499
Patents, trademarks and other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	23,313	22,047
Finite-lived intangible assets, accumulated amortization	(7,475)	(5,743)
Finite-lived intangible assets, net	15,838	16,304
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	19,842	20,305
Finite-lived intangible assets, accumulated amortization	(2,244)	(1,171)
Finite-lived intangible assets, net	17,598	19,134
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	17,573	17,686
Finite-lived intangible assets, accumulated amortization	(2,873)	(1,771)
Finite-lived intangible assets, net	14,700	15,915
Note issuance costs [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	2,445	2,445
Finite-lived intangible assets, accumulated amortization	(2,445)	(2,299)
Finite-lived intangible assets, net	$ 0	$ 146