v2.4.0.8
Stockholders' Equity (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2013
2000 Equity Incentive Plan
Dec. 31, 2013
2012 Equity Incentive Plan
Oct. 03, 2012
Preferred Stock
Dec. 31, 2013
Convertible Preferred Stock
Dec. 31, 2012
Convertible Preferred Stock
Dec. 31, 2011
Convertible Preferred Stock
Dec. 31, 2010
Convertible Preferred Stock
Common Stock                      
Options outstanding under equity incentive plans 7,039,093 6,513,508 6,312,041 5,600,875 5,176,506 [1] 1,862,587 [1]          
Shares available for future grants under equity incentive plans           1,173,450 [1]          
Total shares reserved for future issuance 8,212,543                    
Convertible Preferred Stock and Preferred Stock                      
Convertible preferred stock, shares authorized               0 0    
Convertible preferred stock, shares issued               0 0    
Convertible preferred stock outstanding               0 0 17,597,258.000 17,562,410
Preferred stock, shares authorized 20,000,000 20,000,000         20,000,000        
Preferred stock, par value per share (in dollars per share) $ 0.001 $ 0.001         $ 0.001        
[1] See Note 8 for a description of these plans.