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Shareholders' Equity (Summary of Vesting Activity Related to Restricted Share Units) (Details) - Restricted Stock Units (RSUs) [Member]
3 Months Ended
Mar. 31, 2022
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Vested over remaining service period 312,706
Forfeited (9,440)
Progressive Waste Solutions Ltd. [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Cash settled (2,203)