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Shareholders' Equity (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2024
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, 2024, is presented below: ​
​ | ​ | ​
​ |  | Unvested Shares
Outstanding at December 31, 2023 |  | 936,267
Granted |  | 370,580
Forfeited |  | (44,449)
Vested and issued |  | (339,984)
Outstanding at September 30, 2024 |  | 922,414
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, 2024, is presented below: ​
​ | ​ | ​
​ |  | Unvested Shares
Outstanding at December 31, 2023 |  | 936,267
Granted |  | 370,580
Forfeited |  | (44,449)
Vested and issued |  | (339,984)
Outstanding at September 30, 2024 |  | 922,414
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, 2024, is presented below: ​
​ | ​ | ​
​ |  | Unvested Shares
Outstanding at December 31, 2023 |  | 259,532
Granted |  | 113,166
Vested and issued |  | (153,555)
Outstanding at September 30, 2024 |  | 219,143
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, 2024, is presented below: ​
​ | ​ | ​
​ |  | Unvested Shares
Outstanding at December 31, 2023 |  | 259,532
Granted |  | 113,166
Vested and issued |  | (153,555)
Outstanding at September 30, 2024 |  | 219,143
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, 2024, is presented below: ​
​ | ​ | ​
​ |  | Vested Shares
Outstanding at December 31, 2023 |  | 30,481
Granted |  | 3,746
Cash settled |  | (9,207)
Share settled |  | (4,602)
Outstanding at September 30, 2024 |  | 20,418
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, 2024, is presented below: ​
​ | ​ | ​
​ |  | Vested Shares
Outstanding at December 31, 2023 |  | 30,481
Granted |  | 3,746
Cash settled |  | (9,207)
Share settled |  | (4,602)
Outstanding at September 30, 2024 |  | 20,418
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, 2023 |  | 51,812
Cash settled |  | (1,750)
Outstanding at September 30, 2024 |  | 50,062
Summary of Activity Related to Restricted Share Units | ​
​ | ​ | ​
Outstanding at December 31, 2023 |  | 51,812
Cash settled |  | (1,750)
Outstanding at September 30, 2024 |  | 50,062

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