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Intangible Assets, Net (Intangible Assets Exclusive of Goodwill) (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 1,546,478	$ 1,505,029
Intangible assets, exclusive of goodwill, gross	1,820,672	1,765,758
Indefinite-lived intangible assets, gross carrying amount	274,194	260,729
Finite-lived intangible assets, accumulated amortization	(654,886)	(564,188)
Intangible assets, accumulated impairment loss	(38,507)	(38,507)
Finite-lived intangible assets, net carrying amount	891,592	940,841
Intangible assets, net, exclusive of goodwill	1,127,279	1,163,063
Indefinite-lived intangible assets	235,687	222,222
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	158,591
Indefinite-lived intangible assets	172,056	158,591
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	588,000	550,340
Finite-lived intangible assets, accumulated amortization	(220,502)	(192,462)
Finite-lived intangible assets, net carrying amount	367,498	357,878
Customer Lists [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	594,215	587,562
Finite-lived intangible assets, accumulated amortization	(360,264)	(308,427)
Finite-lived intangible assets, net carrying amount	233,951	279,135
Permits and Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	364,263	367,127
Finite-lived intangible assets, accumulated amortization	(74,120)	(63,299)
Finite-lived intangible assets, net carrying amount	$ 290,143	$ 303,828

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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