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Share-based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2021
Share-based Payment Arrangement [Abstract] |
Summary of share-based compensation expense | Share-based compensation expense was as follows:
| For the three months ended June 30, |  | For the six months ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Continuing operations |  |  |  |  |  |  |
Stock options, net of estimated forfeitures | $ | 101 |  |  | $ | 382 |  |  | $ | 277 |  |  | $ | 727 |
Restricted stock awards | 2,516 |  |  | 3,351 |  |  | 3,674 |  |  | 4,545 |
Total continuing operations | $ | 2,617 |  |  | $ | 3,733 |  |  | $ | 3,951 |  |  | $ | 5,272 |
Discontinued operations |  |  |  |  |  |  |
Share-based compensation expense for discontinued operations | 585 |  |  | 888 |  |  | 827 |  |  | 1,333 |
Total continuing and discontinued operations | $ | 3,202 |  |  | $ | 4,621 |  |  | $ | 4,778 |  |  | $ | 6,605 |

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