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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2021
Share-based Payment Arrangement [Abstract]  
Restricted stock activity
Restricted stock activity for the six months ended June 30, 2021 was as follows (shares in thousands):

 
 SharesWeighted-Average
Grant Date Fair Value
Restricted stock awards outstanding at December 31, 2020905 $35.34 
Awards granted192 55.70 
Awards vested(238)29.90 
Awards forfeited(44)35.90 
Restricted stock awards outstanding at June 30, 2021815 $41.68