Equity Compensation (Fair Value) (Details) - USD ($)
$ / shares in Units, $ in Thousands |
3 Months Ended |
Mar. 31, 2016 |
Mar. 31, 2015 |
| Stock options |
|
|
| Total fair value for the awards vested during the period |
$ 1,500
|
|
| Stock options |
|
|
| Intrinsic-value |
|
|
| Options Exercised |
76
|
$ 782
|
| Options Exercisable |
4,698
|
14,232
|
| Options Vested and Expected to Vest |
$ 4,715
|
$ 15,915
|
| Assumptions used to estimate fair value of stock options |
|
|
| Expected volatility, minimum (as a percent) |
|
54.00%
|
| Expected volatility, maximum (as a percent) |
|
55.00%
|
| Expected dividends (as a percent) |
|
0.00%
|
| Expected term |
|
6 years 1 month 6 days
|
| Risk-free rate, minimum (as a percent) |
|
1.30%
|
| Risk-free rate, maximum (as a percent) |
|
1.60%
|
| Restricted stock units |
|
|
| Restricted stock units |
|
|
| Non-vested balance at beginning of period (in shares) |
425,000
|
|
| Awarded |
1,044,366
|
|
| Non-vested balance at end of period (in shares) |
1,469,366
|
|
| Vested |
0
|
|
| Weighted Average Grant Date Fair Value |
|
|
| Non-vested balance at beginning of period (in dollars per share) |
$ 8.18
|
|
| Awarded (in dollars per share) |
7.32
|
|
| Non-vested balance at end of period (in dollars per share) |
$ 7.57
|
|