Select Balance Sheet Details - Intangible Assets, Net (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	$ 82,350	$ 81,088
Less accumulated amortization	(41,606)	(34,232)
Intangible assets, net	40,744	46,856
Developed product technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	23,475	23,253
Developed product technology [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	3 years
Developed product technology [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	8 years
Distribution rights [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	3 years
Intangible assets, Gross	2,480	4,281
Intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	5 years
Intangible assets, Gross	1,004	1,004
License agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	17,186	17,423
License agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	1 year
License agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	7 years
Core technology [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	10 years
Intangible assets, Gross	5,053	4,940
Trademarks and trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	3,868	3,796
Trademarks and trade names [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	3 years
Trademarks and trade names [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	9 years
Customer-related [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	21,923	19,221
Customer-related [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	12 years
Customer-related [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	15 years
Distribution network [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross	4,027	3,906
Distribution network [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	10 years
Distribution network [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	12 years
Physician education programs [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	10 years
Intangible assets, Gross	3,109	3,039
Supply Agreement [Member]
Finite-Lived Intangible Assets [Line Items]
Useful lives	10 years
Intangible assets, Gross	$ 225	$ 225