Balance Sheets Details (Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 24,876	$ 24,876
Accumulated Amortization	(17,003)	(15,316)
Net Carrying Amount	7,873	9,560
2014 (remaining 6 months)	1,687
2015	3,374
2016	2,812
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,098	3,098
Accumulated Amortization	(3,098)	(3,098)
Net Carrying Amount	0	0
Weighted- Average Amortization Period	5 years
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,534	1,534
Accumulated Amortization	(1,534)	(1,534)
Net Carrying Amount	0	0
Weighted- Average Amortization Period	5 years
Intellectual Property [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,244	20,244
Accumulated Amortization	(12,371)	(10,684)
Net Carrying Amount	$ 7,873	$ 9,560
Weighted- Average Amortization Period	6 years