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Share-based Compensation Plans and Awards (Tables)
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9 Months Ended |
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Sep. 30, 2012
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
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| Schedule of share-based payment award, stock options, valuation assumptions |
The following table presents the weighted-average assumptions used to estimate the fair values of the employee stock options granted in the periods presented: | | | | | | | | | | | Nine months ended | | | September 30, | | | 2011 | | 2012 | Expected life (in years) | | 5.50 |
| | NA |
| Risk-free interest rate | | 1.97 | % | | NA |
| Expected volatility | | 56 | % | | NA |
| Expected dividend yield | | — | % | | NA |
| Weighted-average estimated fair value of options granted during the period | | $ | 16.64 |
| | — |
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| Schedule of share-based compensation, stock options, activity |
Stock option activity (in thousands, except term, exercise price and per share data) for the nine months ended September 30, 2012 is as follows: | | | | | | | | | | | | | | | | | | Number of options outstanding | | Weighted average exercise price | | Weighted average remaining contractual term (in years) | | Aggregate intrinsic value | Outstanding at December 31, 2011 | 16,654 |
| | $ | 13.21 |
| | 7.53 | | $ | 17,480 |
| Options granted | | — |
| | $ | — |
| | — |
| | — |
| Options exercised | | (2,288 | ) | | $ | 3.86 |
| | — |
| | — |
| Options forfeited or canceled | (997 | ) | | $ | 12.77 |
| | — |
| | — |
| Outstanding at September 30, 2012 | 13,369 |
| | $ | 14.84 |
| | 6.51 | | $ | 30,409 |
| Exercisable at September 30, 2012 | 6,990 |
| | $ | 7.63 |
| | 5.30 | | $ | 27,425 |
| Vested and expected to vest after September 30, 2012 | 11,967 |
| | $ | 13.86 |
| | 6.36 | | $ | 29,807 |
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| Schedule of share-based compensation, shares authorized under stock option plans, by exercise price range |
The following table summarizes additional information concerning outstanding and exercisable options at September 30, 2012: | | | | | | | | | | | | | | | | | | Range of Exercise Prices | | Number Outstanding | | Weighted Average Remaining Contractual Term (in years) | | Weighted Average Exercise Price | | Number Exercisable | | Weighted Average Exercise Price | $0.00 - 3.60 | | 1,896 |
| | 2.81 | | $ | 2.25 |
| | 1,811 |
| | $ | 2.21 |
| $3.61 - 7.20 | | 1,205 |
| | 5.11 | | $ | 5.17 |
| | 1,061 |
| | $ | 5.06 |
| $7.21 - 10.80 | | 4,061 |
| | 6.78 | | $ | 9.09 |
| | 3,291 |
| | $ | 9.17 |
| $10.81 - 14.40 | | 220 |
| | 6.78 | | $ | 13.18 |
| | 113 |
| | $ | 13.12 |
| $14.41 - 18.00 | | 2,490 |
| | 7.55 | | $ | 17.52 |
| | 695 |
| | $ | 17.12 |
| $18.01 - 21.60 | | 47 |
| | 8.37 | | $ | 21.42 |
| | 19 |
| | $ | 21.41 |
| $21.61 - 25.20 | | 1,150 |
| | 7.84 | | $ | 24.00 |
| | — |
| | $ | — |
| $28.81 - 32.40 | | 1,150 |
| | 7.84 | | $ | 30.00 |
| | — |
| | $ | — |
| $32.41 - 36.00 | | 1,150 |
| | 7.84 | | $ | 36.00 |
| | — |
| | $ | — |
| | | 13,369 |
| | 6.51 | | $ | 14.84 |
| | 6,990 |
| | $ | 7.63 |
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| Schedule of share-based compensation, restricted stock units award activity |
The following table summarizes the activity of RSUs and other restricted shares for the nine months ended September 30, 2012 is as follows: | | | | | | | | | Shares | | Weighted average grant date fair value | Unvested at December 31, 2011 | 3,606 |
| | $ | 12.19 |
| Granted | 2,789 |
| | 7.55 |
| Vested | (1,257 | ) | | 10.83 |
| Forfeited | (699 | ) | | 10.99 |
| Unvested at September 30, 2012 | 4,439 |
| | $ | 9.75 |
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| Stock-based compansation expense |
Stock-based Compensation Expense Stock-based compensation expense related to all employee and non-employee stock-based awards was as follows: | | | | | | | | | | | | | | | | | | Three months ended September 30, | | Nine months ended September 30, | | 2011 | | 2012 | | 2011 | | 2012 | Stock-based compensation included in | |
| | |
| | | | | Service costs | $ | 757 |
| | $ | 672 |
| | $ | 1,341 |
| | $ | 2,141 |
| Sales and marketing | 1,405 |
| | 1,400 |
| | 3,441 |
| | 4,521 |
| Product development | 1,403 |
| | 1,396 |
| | 3,649 |
| | 5,169 |
| General and administrative | 4,190 |
| | 4,578 |
| | 13,671 |
| | 12,155 |
| Total stock-based compensation included in net loss | $ | 7,755 |
| | $ | 8,046 |
| | $ | 22,102 |
| | $ | 23,986 |
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