Summary of Significant Accounting Policies (Total Reported Revenues by Service Line) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Revenues	$ 6,151,361	$ 5,445,990	$ 5,388,679
Operating Segments [Member] | Solid Waste Collection
Revenue from External Customer [Line Items]
Revenues	4,441,426	3,971,678	3,815,153
Operating Segments [Member] | Solid Waste Collection | Commercial [Member]
Revenue from External Customer [Line Items]
Revenues	1,813,426	1,610,313	1,593,217
Operating Segments [Member] | Solid Waste Collection | Residential [Member]
Revenue from External Customer [Line Items]
Revenues	1,673,819	1,528,217	1,380,763
Operating Segments [Member] | Solid Waste Collection | Industrial and Construction Roll Off [Member]
Revenue from External Customer [Line Items]
Revenues	954,181	833,148	841,173
Operating Segments [Member] | Landfill Site Costs [Member]
Revenue from External Customer [Line Items]
Revenues	1,233,499	1,146,732	1,132,935
Operating Segments [Member] | Transfer [Member]
Revenue from External Customer [Line Items]
Revenues	859,113	777,754	771,316
Operating Segments [Member] | Recycling
Revenue from External Customer [Line Items]
Revenues	205,076	86,389	64,245
Operating Segments [Member] | E&P Waste Treatment, Recovery and Disposal [Member]
Revenue from External Customer [Line Items]
Revenues	138,707	159,438	271,887
Operating Segments [Member] | Intermodal and Other
Revenue from External Customer [Line Items]
Revenues	152,194	118,396	121,137
Intercompany Revenues [Member]
Revenue from External Customer [Line Items]
Revenues	$ (878,654)	$ (814,397)	$ (787,994)