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Share-Based Payments (Tables) | 6 Months Ended
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Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of Grants, Exchanges and Forfeitures of Restricted Stock and RSUs | The following table summarizes the grants, vesting and forfeitures of restricted common stock and RSUs during the six months ended June 30, 2018:
| Type |  | Restricted Stock |  | RSUs |  | Grant Date Fair Value ($ in thousands)
Outstanding at December 31, 2017 |  | 105,561 |  |  | 1,632,746 |  |  |
| Grant |  | 28,070 |  |  | — |  |  | 500 |
| Vested |  | (10,394 | ) |  | — |  |  | N/A |
| Forfeiture |  | — |  |  | (29,410 | ) |  | N/A |
Outstanding at June 30, 2018 |  | 123,237 |  |  | 1,603,336 |  |  |
Below is a summary of restricted stock and RSU vesting dates as of June 30, 2018:
Vesting Year | Restricted Stock |  | RSU |  | Total Awards
2018 | 57,540 |  |  | 744,497 |  |  | 802,037 |
2019 | 60,803 |  |  | 560,138 |  |  | 620,941 |
2020 | 4,894 |  |  | 298,701 |  |  | 303,595 |
Total | 123,237 |  |  | 1,603,336 |  |  | 1,726,573 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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