Equity Compensation (Range) (Details)
|
9 Months Ended |
|
Sep. 30, 2015
$ / shares
shares
|
|---|
| Options Outstanding |
|
| Number of Underlying Shares | shares |
4,701,290
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
3,001,261
|
| 1.71-2.66 |
|
| Equity compensation |
|
| Range of Exercise Price, low end of range (in dollars per share) |
$ 1.71
|
| Range of Exercise Price, high end of range (in dollars per share) |
2.66
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 2.47
|
| Number of Underlying Shares | shares |
211,587
|
| Weighted-Average Remaining Contractual Life |
1 year 1 month 6 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
211,587
|
| Weighted-Average Remaining Contractual Life |
1 year 1 month 6 days
|
| 3.38-6.14 |
|
| Equity compensation |
|
| Range of Exercise Price, low end of range (in dollars per share) |
$ 3.38
|
| Range of Exercise Price, high end of range (in dollars per share) |
6.14
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 5.64
|
| Number of Underlying Shares | shares |
1,437,561
|
| Weighted-Average Remaining Contractual Life |
4 years 7 months 6 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
1,428,774
|
| Weighted-Average Remaining Contractual Life |
4 years 7 months 6 days
|
| 6.34-9.94 |
|
| Equity compensation |
|
| Range of Exercise Price, low end of range (in dollars per share) |
$ 6.34
|
| Range of Exercise Price, high end of range (in dollars per share) |
9.94
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 8.34
|
| Number of Underlying Shares | shares |
1,013,900
|
| Weighted-Average Remaining Contractual Life |
6 years 6 months
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
769,963
|
| Weighted-Average Remaining Contractual Life |
6 years
|
| 11.28-16.97 |
|
| Equity compensation |
|
| Range of Exercise Price, low end of range (in dollars per share) |
$ 11.28
|
| Range of Exercise Price, high end of range (in dollars per share) |
16.97
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 13.71
|
| Number of Underlying Shares | shares |
1,272,685
|
| Weighted-Average Remaining Contractual Life |
8 years 3 months 18 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
279,527
|
| Weighted-Average Remaining Contractual Life |
6 years 3 months 18 days
|
| 17.66-22.92 |
|
| Equity compensation |
|
| Range of Exercise Price, low end of range (in dollars per share) |
$ 17.66
|
| Range of Exercise Price, high end of range (in dollars per share) |
22.92
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 20.99
|
| Number of Underlying Shares | shares |
765,557
|
| Weighted-Average Remaining Contractual Life |
8 years 2 months 12 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
311,410
|
| Weighted-Average Remaining Contractual Life |
7 years 9 months 18 days
|