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Shareholders' Equity (Summary of Vesting Activity Related to Restricted Share Units) (Details) - Progressive Waste Solutions Ltd. [Member]
3 Months Ended
Mar. 31, 2017
shares
Restricted Stock Units (RSUs) [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Vested at December 31, 2016 148,348
Vested over remaining service period 2,179
Cash settled (17,342)
Vested at March 31, 2017 133,185
Performance Shares [Member]  
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Vested at December 31, 2016 23,818
Vested over remaining service period 2,522
Cash settled (5,304)
Vested at March 31, 2017 21,036