Intangible Assets, Net (Intangible Assets Exclusive of Goodwill) (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 2,036,119	$ 1,973,656
Intangible assets, exclusive of goodwill, gross	2,277,587	2,215,124
Indefinite-lived intangible assets, gross carrying amount	241,468	241,468
Finite-lived intangible assets, accumulated amortization	(848,116)	(823,743)
Intangible assets, accumulated impairment loss	(40,784)	(40,784)
Finite-lived intangible assets, net carrying amount	1,188,003	1,149,913
Intangible assets, net, exclusive of goodwill	1,388,687	1,350,597
Indefinite-lived intangible assets	200,684	200,684
Solid Waste Collection and Transportation Permits [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	181,613	181,613
Indefinite-lived intangible assets	181,613	181,613
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	(40,784)	(40,784)
Indefinite-lived intangible assets	19,071	19,071
Long-term Franchise Agreements and Contracts [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	710,898	724,128
Finite-lived intangible assets, accumulated amortization	(276,120)	(278,827)
Finite-lived intangible assets, net carrying amount	434,778	445,301
Customer Lists [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	751,518	711,047
Finite-lived intangible assets, accumulated amortization	(471,635)	(450,109)
Finite-lived intangible assets, net carrying amount	279,883	260,938
Permits and Other [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	573,703	538,481
Finite-lived intangible assets, accumulated amortization	(100,361)	(94,807)
Finite-lived intangible assets, net carrying amount	$ 473,342	$ 443,674