|
Equity Compensation (Details) (Stock options, USD $)
|
3 Months Ended |
0 Months Ended |
|
|
Mar. 31, 2014
|
Jan. 02, 2014
2013 Plan
|
Jun. 11, 2013
2013 Plan
|
| Stock options |
|
|
|
| Annual increase in shares authorized for issuance as a percentage of shares outstanding as of the preceding December 31 |
|
|
5.00% |
| Increase in number of shares authorized for issuance |
|
1,139,255 |
|
| Shares Subject to Options Outstanding |
|
|
|
| Balance at the beginning of the period (in shares) |
4,905,214 |
|
|
| Granted (in shares) |
787,244 |
|
|
| Exercised (in shares) |
(786,201) |
|
|
| Forfeited (in shares) |
(11,783) |
|
|
| Balance at the end of the period (in shares) |
4,894,474 |
|
|
| Exercisable options (in shares) |
2,668,667 |
|
|
| Vested and expected to vest at the end of the period (in shares) |
4,672,052 |
|
|
| Weighted Average Grant Date Fair Value |
|
|
|
| Granted (in dollars per share) |
$ 11.82 |
|
|
| Weighted Average Exercise Price |
|
|
|
| Balance at the beginning of the period (in dollars per share) |
$ 6.31 |
|
|
| Granted (in dollars per share) |
$ 20.86 |
|
|
| Exercised (in dollars per share) |
$ 4.06 |
|
|
| Forfeited (in dollars per share) |
$ 14.39 |
|
|
| Balance at the end of the period (in dollars per share) |
$ 8.96 |
|
|
| Exercisable options at the end of the period (in dollars per share) |
$ 5.27 |
|
|
| Vested and expected to vest (in dollars per share) |
$ 8.65 |
|
|
| Weighted-Average Remaining Contractual Life |
|
|
|
| Exercisable options |
5 years |
|
|
| Vested and expected to vest |
6 years 7 months 6 days |
|
|