Stockholders' Equity (Details) - $ / shares |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2012 |
Oct. 03, 2012 |
|---|---|---|---|---|---|
| Common Stock | |||||
| Options and RSUs outstanding under equity incentive plans | 7,579,058 | 7,605,407 | 7,039,093 | 6,513,508 | |
| Total shares reserved for future issuance | 9,245,419 | ||||
| Preferred Stock | |||||
| Preferred stock, shares authorized | 20,000,000 | 20,000,000 | |||
| Preferred stock, par value per share (in dollars per share) | $ 0.001 | $ 0.001 | |||
| Preferred Stock | |||||
| Preferred Stock | |||||
| Preferred stock, shares authorized | 20,000,000 | ||||
| Preferred stock, par value per share (in dollars per share) | $ 0.001 | ||||
| 2000 Equity Incentive Plan | |||||
| Common Stock | |||||
| Options and RSUs outstanding under equity incentive plans | 3,527,674 | ||||
| 2012 Equity Incentive Plan | |||||
| Common Stock | |||||
| Options and RSUs outstanding under equity incentive plans | 4,098,884 | ||||
| Shares available for future grants under an equity incentive plan | 1,618,861 |