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Shareholders' Equity - Summary of Activity Related to RSUs (Details)
3 Months Ended
Mar. 31, 2025
$ / shares
shares
Restricted stock units (RSUs)  
Unvested shares  
Outstanding, shares at beginning 912,560
Granted 353,840
Forfeited (12,749)
Vested and issued 343,415
Outstanding at ending 29,092
Outstanding, shares at ending 910,236
Weighted-Average Grant Date Fair Value Per Share  
Granted, per Share | $ / shares $ 185.66
Performance shares  
Unvested shares  
Outstanding, shares at beginning 219,143
Granted 80,104
Vested and issued 87,964
Outstanding, shares at ending 211,283
Weighted-Average Grant Date Fair Value Per Share  
Granted, per Share | $ / shares $ 176.19
Deferred share units  
Unvested shares  
Outstanding at beginning 20,418
Granted 2,485
Outstanding at ending 22,903
Weighted-Average Grant Date Fair Value Per Share  
Granted, per Share | $ / shares $ 189.04
Progressive Waste Solutions Ltd. | Restricted stock units (RSUs)  
Unvested shares  
Outstanding at beginning 45,466
Cash settled (1,750)
Outstanding at ending 43,716