Equity Compensation (Range) (Details)
|
9 Months Ended |
|
Sep. 30, 2017
$ / shares
shares
|
|---|
| Options Outstanding |
|
| Number of Underlying Shares | shares |
2,579,225
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
2,201,595
|
| 3.59-6.14 |
|
| Equity compensation |
|
| Range of Exercise Price, low end of range (in dollars per share) |
$ 3.59
|
| Range of Exercise Price, high end of range (in dollars per share) |
6.14
|
| Options Outstanding |
|
| Weighted Average Exercise Price (in dollars per share) |
$ 5.98
|
| Number of Underlying Shares | shares |
875,988
|
| Weighted-Average Remaining Contractual Life |
3 years 8 months 12 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
875,988
|
| Weighted-Average Remaining Contractual Life |
3 years 8 months 12 days
|
| 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) |
$ 8.42
|
| Number of Underlying Shares | shares |
359,858
|
| Weighted-Average Remaining Contractual Life |
5 years 9 months 18 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
287,269
|
| Weighted-Average Remaining Contractual Life |
5 years 1 month 6 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) |
$ 13.79
|
| Number of Underlying Shares | shares |
783,732
|
| Weighted-Average Remaining Contractual Life |
6 years 8 months 12 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
542,383
|
| 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) |
$ 20.99
|
| Number of Underlying Shares | shares |
559,647
|
| Weighted-Average Remaining Contractual Life |
6 years 3 months 18 days
|
| Options Exercisable |
|
| Number of Underlying Shares | shares |
495,955
|
| Weighted-Average Remaining Contractual Life |
6 years 3 months 18 days
|