Quarterly report pursuant to Section 13 or 15(d)

Share-based Awards and Cash-based Awards - Summary of Share Activity Related to Restricted Stock Units (Details)

v3.21.2
Share-based Awards and Cash-based Awards - Summary of Share Activity Related to Restricted Stock Units (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Nonvested, units (in shares) 763,688  
Nonvested, weighted average grant date fair value per unit (in dollars per share) $ 4.51  
Granted, units (in shares) 704,949 0
Granted, weighted average grant date fair value per unit (in dollars per share) $ 4.71  
Forfeited, units (in shares) (43,132)  
Forfeited, weighted average grant date fair value per unit (in dollars per share) $ 4.55  
Nonvested, units (in shares) 1,425,505 763,688
Nonvested, weighted average grant date fair value per unit (in dollars per share) $ 4.61 $ 4.51