Goodwill and Other Intangible Assets - Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization	$ (10,984)	$ (5,706)
Finite-lived intangible assets, net	51,499	6,938
Patents trademarks and other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	22,047	7,744
Finite-lived intangible assets, accumulated amortization	(5,743)	(3,698)
Finite-lived intangible assets, net	16,304	4,046
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	20,305	152
Finite-lived intangible assets, accumulated amortization	(1,171)	(3)
Finite-lived intangible assets, net	19,134	149
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	17,686	2,303
Finite-lived intangible assets, accumulated amortization	(1,771)	(55)
Finite-lived intangible assets, net	15,915	2,248
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	(2,299)	(1,950)
Finite-lived intangible assets, net	$ 146	$ 495