Annual report pursuant to Section 13 and 15(d)

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

v3.22.0.1
Share-based Awards and Cash-based Awards - Summary of Share Activity Related to Restricted Stock Units (Details) - Restricted Stock Units [Member] - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Nonvested, beginning of period (in shares) 763,688 1,614,722 3,355,917
Nonvested, beginning of period, weighted average grant date fair value per unit (in dollars per share) $ 4.51 $ 5.73 $ 3.90
Granted, units (in shares) 710,441 0 994,698
Granted, weighted average grant date fair value per unit (in dollars per share) $ 4.71   $ 4.51
Vested, units (in shares) (731,095) (787,203) (1,475,373)
Vested, weighted average grant date fair value per unit (in dollars per share) $ 4.51 $ 6.90 $ 2.76
Forfeited, units (in shares) (44,569) (63,831) (1,260,520)
Forfeited, weighted average grant date fair value per unit (in dollars per share) $ 4.50 $ 5.80 $ 3.37
Nonvested, end of period (in shares) 698,465 763,688 1,614,722
Nonvested, end of period, weighted average grant date fair value per unit (in dollars per share) $ 4.71 $ 4.51 $ 5.73