Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified													9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 Developed technology [Member]	Dec. 31, 2012 Developed technology [Member]	Sep. 30, 2013 Customer relationships [Member]	Dec. 31, 2012 Customer relationships [Member]	Sep. 30, 2013 Trademarks [Member]	Dec. 31, 2012 Trademarks [Member]	Sep. 30, 2013 Noncompete Agreements [Member]	Dec. 31, 2012 Noncompete Agreements [Member]	Sep. 30, 2013 In-process research and development [Member]	Dec. 31, 2012 In-process research and development [Member]	Sep. 30, 2013 Minimum [Member]	Sep. 30, 2013 Maximum [Member]
Schedule of goodwill and intangible assets
Finite-Lived Intangible Assets, Gross	$ 13,603	$ 8,730	$ 7,443	$ 4,400	$ 3,800	$ 3,000	$ 610	$ 510	$ 450	$ 410	$ 1,300	$ 410
Accumulated Amortization	(1,808)	(824)	(798)	(330)	(463)	(225)	(236)	(115)	(311)	(154)	0	0
Net Carrying Amount	$ 11,795	$ 7,906	$ 6,645	$ 4,070	$ 3,337	$ 2,775	$ 374	$ 395	$ 139	$ 256	$ 1,300	$ 410
Estimated useful life													1 year	10 years