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Share-based Compensation
 6 Months Ended
Jun. 30, 2021
Share-based Payment Arrangement [Abstract]  
Share-based Compensation Share-based Compensation Share-based compensation expense was as follows:
For the three months ended June 30, For the six months ended June 30,
2021202020212020
Continuing operations
Stock options, net of estimated forfeitures$101 $382 $277 $727 
Restricted stock awards2,516 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 operations585 888 827 1,333 
Total continuing and discontinued operations$3,202 $4,621 $4,778 $6,605