Intangible Assets, Net (Intangible Assets Exclusive of Goodwill) (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 1,628,588	$ 1,615,661
Intangible assets, exclusive of goodwill, gross	1,902,782	1,889,855
Indefinite-lived intangible assets, gross carrying amount	274,194	274,194
Finite-lived intangible assets, accumulated amortization	(761,759)	(696,269)
Intangible assets, accumulated impairment loss	(38,507)	(38,507)
Finite-lived intangible assets, net carrying amount	866,829	919,392
Intangible assets, net, exclusive of goodwill	1,102,516	1,155,079
Indefinite-lived intangible assets	235,687	235,687
Solid Waste Collection and Transportation Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	172,056	172,056
Indefinite-lived intangible assets	172,056	172,056
Material Recycling Facility Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	42,283	42,283
Indefinite-lived intangible assets	42,283	42,283
Exploration and Production Facility Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	59,855	59,855
Intangible assets, accumulated impairment loss	(38,507)	(38,507)
Indefinite-lived intangible assets	21,348	21,348
Long-term Franchise Agreements and Contracts [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	600,865	600,674
Finite-lived intangible assets, accumulated amortization	(257,176)	(234,972)
Finite-lived intangible assets, net carrying amount	343,689	365,702
Customer Lists [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	647,070	636,035
Finite-lived intangible assets, accumulated amortization	(417,563)	(382,020)
Finite-lived intangible assets, net carrying amount	229,507	254,015
Permits and Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	380,653	378,952
Finite-lived intangible assets, accumulated amortization	(87,020)	(79,277)
Finite-lived intangible assets, net carrying amount	$ 293,633	$ 299,675