Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Performance Shares Activity (Details)

v3.21.2
Stock-Based Compensation - Summary of Performance Shares Activity (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Weighted Average FV Per Share  
Outstanding beginning balance (in dollars per share) | $ / shares $ 12.27
Granted (in dollars per share) | $ / shares 14.76
Vested (in dollars per share) | $ / shares 27.51
Forfeited (in dollars per share) | $ / shares 0
Outstanding ending balance (in dollars per share) | $ / shares $ 12.48
Performance stock units  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]  
Outstanding beginning balance (in shares) 1,019,000
Target Shares Granted (in shares) 650,774
Target Shares Vested (in shares) (84,000)
Target Shares Forfeited (in shares) 0
Outstanding ending balance (in shares) 1,586,000
Weighted Average FV Per Share  
Outstanding ending balance (in dollars per share) | $ / shares $ 12.48
2018 | Performance stock units  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]  
Outstanding beginning balance (in shares) 84,000
Target Shares Granted (in shares) 0
Target Shares Vested (in shares) (84,000)
Target Shares Forfeited (in shares) 0
Outstanding ending balance (in shares) 0
Weighted Average FV Per Share  
Outstanding ending balance (in dollars per share) | $ / shares $ 27.51
2019 | Performance stock units  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]  
Outstanding beginning balance (in shares) 126,000
Target Shares Granted (in shares) 0
Target Shares Vested (in shares) 0
Target Shares Forfeited (in shares) 0
Outstanding ending balance (in shares) 126,000
Weighted Average FV Per Share  
Outstanding ending balance (in dollars per share) | $ / shares $ 27.49
2020 | Performance stock units  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]  
Outstanding beginning balance (in shares) 809,000
Target Shares Granted (in shares) 0
Target Shares Vested (in shares) 0
Target Shares Forfeited (in shares) 0
Outstanding ending balance (in shares) 809,000
Weighted Average FV Per Share  
Outstanding ending balance (in dollars per share) | $ / shares $ 8.30
2021 | Performance stock units  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]  
Outstanding beginning balance (in shares) 0
Target Shares Granted (in shares) 651,000
Target Shares Vested (in shares) 0
Target Shares Forfeited (in shares) 0
Outstanding ending balance (in shares) 651,000
Weighted Average FV Per Share  
Outstanding ending balance (in dollars per share) | $ / shares $ 14.76