Equity Compensation (Expense) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
$ 1,983
|
$ 1,808
|
$ 5,933
|
$ 5,336
|
| Cost of revenue |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
38
|
40
|
128
|
126
|
| Research and development |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
789
|
706
|
2,493
|
2,145
|
| Sales and marketing |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
496
|
457
|
1,605
|
1,298
|
| General and administrative |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total stock-based compensation expense |
660
|
$ 605
|
1,707
|
$ 1,767
|
| Stock options |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total unrecognized compensation cost related to non-vested stock option awards |
7,800
|
|
$ 7,800
|
|
| Weighted-average period over which unrecognized compensation cost will be recognized |
|
|
1 year 10 months 24 days
|
|
| Restricted stock units |
|
|
|
|
| Total stock-based compensation expense |
|
|
|
|
| Total unrecognized compensation cost related to non-vested restricted stock units |
$ 8,500
|
|
$ 8,500
|
|
| Weighted-average period over which unrecognized compensation cost will be recognized |
|
|
2 years 4 months 24 days
|
|