| Net Income (Loss) Per Share |
Net Income (Loss) Per Share The following table sets forth the computation of basic and diluted net income (loss) per share of common stock: | | | | | | | | | | | | | | | | | | Three months ended | | Nine months ended | | September 30, | | September 30, | | 2011 | | 2012 | | 2011 | | 2012 | Numerator: | |
| | |
| | |
| | |
| Net income (loss) | $ | (4,145 | ) | | $ | 3,175 |
| | $ | (12,098 | ) | | $ | 1,427 |
| Cumulative preferred stock dividends | — |
| | — |
| | (2,477 | ) | | — |
| Net income (loss) attributable to common stockholders | $ | (4,145 | ) | | $ | 3,175 |
| | $ | (14,575 | ) | | $ | 1,427 |
| Denominator: | |
| | |
| | |
| | |
| Weighted average common shares outstanding | 84,348 |
| | 85,458 |
| | 77,465 |
| | 84,430 |
| Weighted average unvested restricted stock awards | (414 | ) | | (276 | ) | | (464 | ) | | (410 | ) | Weighted average common shares outstanding—basic | 83,934 |
| | 85,182 |
| | 77,001 |
| | 84,020 |
| Dilutive effect of stock options, warrants and ESPP | — |
| | 3,569 |
| | — |
| | 2,875 |
| Weighted average common shares outstanding—diluted | 83,934 |
| | 88,751 |
| | 77,001 |
| | 86,895 |
| Net income (loss) per share—basic | $ | (0.05 | ) | | $ | 0.04 |
| | $ | (0.19 | ) | | $ | 0.02 |
| Net income (loss) per share—diluted | $ | (0.05 | ) | | $ | 0.04 |
| | $ | (0.19 | ) | | $ | 0.02 |
|
As of each period end, the following common equivalent shares were excluded from the calculation of the Company’s diluted net income (loss) per share in for the period shown as their inclusion would have been antidilutive: | | | | | | | | | | | | | | Three months ended | | Nine months ended | | September 30, | September 30, | | 2011 | | 2012 | | 2011 | | 2012 | Stock options | 11,501 |
| | 6,400 |
| | 6,831 |
| | 10,186 |
| Unvested RSUs | 2,234 |
| | 1,198 |
| | 1,812 |
| | 1,559 |
| Common Stock Warrants | 375 |
| | 375 |
| | 375 |
| | 375 |
| ESPP shares | 1,601 |
| | 827 |
| | 1,601 |
| | 827 |
|
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