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Stock-Based Compensation - Summary of Nonvested Common Share and Common Share Unit Activity (Details)
shares in Thousands
 6 Months Ended
Jun. 30, 2023
$ / shares
shares
Nonvested shares | Time and Performance- Based Share Awards  
Number of Shares  
Outstanding at beginning of year (in shares) | shares 647
Granted (in shares) | shares 300
Vested (in shares) | shares (103)
Forfeited (in shares) | shares 0
Outstanding at end of period (in shares) | shares 844
Weighted Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 20.99
Granted (in dollars per share) | $ / shares 12.66
Vested (in dollars per share) | $ / shares 51.52
Forfeited (in dollars per share) | $ / shares 0
Outstanding at end of period (in dollars per share) | $ / shares $ 14.29
Nonvested shares | Time-Based Share Awards  
Number of Shares  
Outstanding at beginning of year (in shares) | shares 138
Granted (in shares) | shares 75
Vested (in shares) | shares (64)
Forfeited (in shares) | shares 0
Outstanding at end of period (in shares) | shares 149
Weighted Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 45.94
Granted (in dollars per share) | $ / shares 43.51
Vested (in dollars per share) | $ / shares 46.65
Forfeited (in dollars per share) | $ / shares 0
Outstanding at end of period (in dollars per share) | $ / shares $ 44.40
Share Units  
Number of Shares  
Outstanding at beginning of year (in shares) | shares 350
Granted (in shares) | shares 461
Vested (in shares) | shares (160)
Forfeited (in shares) | shares (13)
Outstanding at end of period (in shares) | shares 638
Weighted Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 45.51
Granted (in dollars per share) | $ / shares 38.59
Vested (in dollars per share) | $ / shares 47.82
Forfeited (in dollars per share) | $ / shares 39.21
Outstanding at end of period (in dollars per share) | $ / shares $ 40.04
DEUs  
Number of Shares  
Outstanding at beginning of year (in shares) | shares 37
Granted (in shares) | shares 19
Vested (in shares) | shares (15)
Forfeited (in shares) | shares 0
Outstanding at end of period (in shares) | shares 41
Weighted Average Grant Date Fair Value  
Outstanding at beginning of year (in dollars per share) | $ / shares $ 40.86
Granted (in dollars per share) | $ / shares 41.74
Vested (in dollars per share) | $ / shares 40.28
Forfeited (in dollars per share) | $ / shares 40.76
Outstanding at end of period (in dollars per share) | $ / shares $ 41.48