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Share-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Share-based Awards Activity
A summary of the status of our share-based compensation awards as of September 30, 2021 and changes during the nine months ended September 30, 2021, are presented below: 
 2021
 Shares
(in thousands)		Weighted-
Average
Grant-Date
Fair Value
Nonvested - December 31, 20201,263 $3.48 
Granted457 9.90 
Vested(327)5.50 
Forfeited(23)7.18 
Nonvested - September 30, 20211,370 $5.07