Equity Compensation (Expense) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
Mar. 31, 2017 |
Mar. 31, 2016 |
| Stock options |
|
|
| Total stock-based compensation expense |
|
|
| Total stock-based compensation expense |
$ 3,254
|
$ 1,823
|
| Total unrecognized compensation cost related to non-vested stock option awards |
$ 5,200
|
|
| Weighted-average period over which unrecognized compensation cost will be recognized |
1 year 6 months
|
|
| Stock options | Cost of revenue |
|
|
| Total stock-based compensation expense |
|
|
| Total stock-based compensation expense |
$ 58
|
43
|
| Stock options | Research and development |
|
|
| Total stock-based compensation expense |
|
|
| Total stock-based compensation expense |
1,129
|
814
|
| Stock options | Sales and marketing |
|
|
| Total stock-based compensation expense |
|
|
| Total stock-based compensation expense |
1,064
|
509
|
| Stock options | General and administrative |
|
|
| Total stock-based compensation expense |
|
|
| Total stock-based compensation expense |
1,003
|
$ 457
|
| Restricted stock units |
|
|
| Total stock-based compensation expense |
|
|
| Total unrecognized compensation cost related to non-vested restricted stock units |
$ 12,700
|
|
| Weighted-average period over which unrecognized compensation cost will be recognized |
2 years 3 months 18 days
|
|