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Share-Based Compensation - Restricted common shares and restricted stock units activity (Details)
 12 Months Ended
Dec. 31, 2023
$ / shares
shares
Number of Restricted Common Shares  
Unvested Shares:  
Unvested balance, beginning of year (in shares) | shares 2,165,554
Number of restricted shares and restricted unit awards granted | shares 678,657
Vested (in shares) | shares (1,281,449)
Forfeited (in shares) | shares (38,157)
Unvested balance, end of year (in shares) | shares 1,524,605
Weighted Average Grant Date Fair Value:  
Unvested balance, beginning of year, weighted average grant date fair value | $ / shares $ 40.23
Weighted average grant date fair value | $ / shares 69.47
Vested, weighted average grant date fair value | $ / shares 38.37
Forfeited, weighted average grant date fair value | $ / shares 49.65
Unvested balance, end of year, weighted average grant date fair value | $ / shares $ 54.57
Number of Restricted Unit Awards  
Unvested Shares:  
Unvested balance, beginning of year (in shares) | shares 517,293
Number of restricted shares and restricted unit awards granted | shares 146,534
Vested (in shares) | shares (352,190)
Forfeited (in shares) | shares (5,709)
Unvested balance, end of year (in shares) | shares 305,928
Weighted Average Grant Date Fair Value:  
Unvested balance, beginning of year, weighted average grant date fair value | $ / shares $ 37.17
Weighted average grant date fair value | $ / shares 69.20
Vested, weighted average grant date fair value | $ / shares 34.16
Forfeited, weighted average grant date fair value | $ / shares 55.55
Unvested balance, end of year, weighted average grant date fair value | $ / shares $ 55.63