Equity Compensation (Expense) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
| Stock options |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
$ 3,028
|
$ 1,983
|
$ 9,191
|
$ 5,933
|
| Total unrecognized compensation cost related to non-vested stock option awards |
3,300
|
|
$ 3,300
|
|
| Weighted-average period over which unrecognized compensation cost will be recognized |
|
|
1 year 1 month 6 days
|
|
| Stock options | Cost of revenue |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
66
|
38
|
$ 185
|
128
|
| Stock options | Research and development |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
1,031
|
789
|
3,210
|
2,493
|
| Stock options | Sales and marketing |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
883
|
496
|
2,831
|
1,605
|
| Stock options | General and administrative |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
1,048
|
$ 660
|
2,965
|
$ 1,707
|
| Restricted stock units |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total unrecognized compensation cost related to non-vested restricted stock units |
$ 10,200
|
|
$ 10,200
|
|
| Weighted-average period over which unrecognized compensation cost will be recognized |
|
|
1 year 10 months 24 days
|
|