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EQUITY-BASED COMPENSATION - Additional (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Equity-based compensation |  |  |  |
Common stock issued for director fees |  |  | 4,073 | 3,055
Compensation expense to be recognized |  |  |  |
2016 | $ 1,991 |  | $ 1,991 |
2017 | 3,697 |  | 3,697 |
2018 | 1,987 |  | 1,987 |
2019 | 360 |  | 360 |
2020 | 9 |  | 9 |
Unrecognized compensation costs related to non-vested awards | 8,044 |  | $ 8,044 |
Directors |  |  |  |
Equity-based compensation |  |  |  |
Grants under the Equity Plan and to directors |  |  | 32,180 | 30,440
Restricted Stock Awards | Time-Based |  |  |  |
Compensation expense to be recognized |  |  |  |
2016 | 840 |  | $ 840 |
2017 | 1,505 |  | 1,505 |
2018 | 819 |  | 819 |
2019 | 165 |  | 165 |
2020 | 9 |  | 9 |
Unrecognized compensation costs related to non-vested awards | 3,338 |  | 3,338 |
Restricted Stock Awards | Performance-Based |  |  |  |
Compensation expense to be recognized |  |  |  |
2016 | 1,151 |  | 1,151 |
2017 | 2,192 |  | 2,192 |
2018 | 1,168 |  | 1,168 |
2019 | 195 |  | 195 |
2020 | 0 |  | 0 |
Unrecognized compensation costs related to non-vested awards | 4,706 |  | 4,706 |
Corporate general and administrative |  |  |  |
Equity-based compensation |  |  |  |
Share based compensation expense | 1,389 | $ 1,372 | 2,182 | $ 2,008
Corporate general and administrative | Stock options |  |  |  |
Equity-based compensation |  |  |  |
Share based compensation expense | 0 | 148 | 55 | 295
Corporate general and administrative | Restricted Stock Awards | Time-Based |  |  |  |
Equity-based compensation |  |  |  |
Share based compensation expense | 420 | 354 | 757 | 576
Corporate general and administrative | Restricted Stock Awards | Performance-Based |  |  |  |
Equity-based compensation |  |  |  |
Share based compensation expense | 575 | 437 | 956 | 704
Corporate general and administrative | Stock awards | Directors |  |  |  |
Equity-based compensation |  |  |  |
Share based compensation expense | $ 394 | $ 433 | $ 414 | $ 433
Common Stock | Restricted Stock Awards | Time-Based | Directors |  |  |  |
Equity-based compensation |  |  |  |
Common stock issued for director fees |  |  | 4,073 |

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