Equity Compensation (Range) (Details)
|
3 Months Ended |
|
Mar. 31, 2017
$ / shares
shares
|
|---|
| Options Outstanding |
|
| Number of Underlying Shares | shares |
3,282,428
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
2,678,355
|
| 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) |
$ 5.92
|
| Number of Underlying Shares | shares |
964,352
|
| Weighted-Average Remaining Contractual Life |
4 years
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
964,352
|
| Weighted-Average Remaining Contractual Life |
4 years
|
| 6.34-9.93 |
|
| 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) |
9.93
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 8.57
|
| Number of Underlying Shares | shares |
627,739
|
| Weighted-Average Remaining Contractual Life |
5 years 10 months 24 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
529,726
|
| Weighted-Average Remaining Contractual Life |
5 years 4 months 24 days
|
| 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) |
$ 13.88
|
| Number of Underlying Shares | shares |
1,036,951
|
| Weighted-Average Remaining Contractual Life |
6 years 10 months 24 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
670,482
|
| Weighted-Average Remaining Contractual Life |
6 years 7 months 6 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) |
$ 20.98
|
| Number of Underlying Shares | shares |
653,386
|
| Weighted-Average Remaining Contractual Life |
6 years 8 months 12 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
513,795
|
| Weighted-Average Remaining Contractual Life |
6 years 8 months 12 days
|