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Net Income (Loss) Per Share - Reconciliation of Numerator and Denominator of Basic and Diluted Net Income (Loss) Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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| Numerator | ||
| Net income (loss) | $ 21,198 | $ (3,991) |
| Denominator | ||
| Weighted average shares outstanding, basic | 134,777 | 136,795 |
| Effect of dilutive potential common shares | 4,456 | |
| Weighted average shares outstanding, diluted | 139,233 | 136,795 |
| Basic net income (loss) per share | $ 0.16 | $ (0.03) |
| Diluted net income (loss) per share | $ 0.15 | $ (0.03) |
| Antidilutive employee stock-based awards, excluded | 3,870 | 5,855 |