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v3.25.3

Shareholders' Equity (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Restricted stock units (RSUs) |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
Summary of Activity Related to Restricted Share Units | A summary of activity related to restricted share units (“RSUs”) during the nine-month period ended September 30, 2025, is presented below: ​
​ | ​ | ​
​ |  | Unvested Shares
Outstanding at December 31, 2024 |  | 912,560
Granted |  | 355,031
Forfeited |  | (36,129)
Vested and issued |  | (352,111)
Outstanding at September 30, 2025 |  | 879,351
Performance shares |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
Summary of Performance-Based Restricted Share Units Activity and Related Information | A summary of activity related to performance-based restricted share units (“PSUs”) during the nine-month period ended September 30, 2025, is presented below: ​
​ | ​ | ​
​ |  | Unvested Shares
Outstanding at December 31, 2024 |  | 219,143
Granted |  | 80,104
Vested and issued |  | (87,964)
Outstanding at September 30, 2025 |  | 211,283
Deferred share units |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
Summary of Activity Related to Restricted Share Units | A summary of activity related to deferred share units (“DSUs”) during the nine-month period ended September 30, 2025, is presented below: ​
​ | ​ | ​
​ |  | Vested Shares
Outstanding at December 31, 2024 |  | 20,418
Granted |  | 2,485
Outstanding at September 30, 2025 |  | 22,903
Progressive Waste Solutions Ltd. | Restricted stock units (RSUs) |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |
Summary of Activity Related to Restricted Share Units | ​
​ | ​ | ​
Outstanding at December 31, 2024 |  | 45,466
Cash settled |  | (1,750)
Outstanding at September 30, 2025 |  | 43,716

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