Intangible Assets Exclusive of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 377,162	$ 379,605
Intangible assets, exclusive of goodwill, Gross	630,805	633,248
Finite-lived intangible assets, accumulated amortization	(103,656)	(91,340)
Finite-lived intangible assets, net carrying amount	273,506	288,265
Intangible assets, net, exclusive of goodwill	527,149	541,908
Indefinite-lived intangible assets, gross carrying amount	253,643	253,643
Indefinite-lived intangible assets, accumulated amortization
Indefinite-lived intangible assets	253,643	253,643
Solid Waste Collection and Transportation Permits
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	151,505	151,505
Indefinite-lived intangible assets, accumulated amortization
Indefinite-lived intangible assets	151,505	151,505
Material Recycling Facility Permits
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	42,283	42,283
Indefinite-lived intangible assets, accumulated amortization
Indefinite-lived intangible assets	42,283	42,283
Exploration and Production Facility Permits
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	59,855	59,855
Indefinite-lived intangible assets, accumulated amortization
Indefinite-lived intangible assets	59,855	59,855
Long-term Franchise Agreements and Contracts
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	196,230	198,779
Finite-lived intangible assets, accumulated amortization	(41,990)	(38,447)
Finite-lived intangible assets, net carrying amount	154,240	160,332
Customer Lists
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	139,465	139,354
Finite-lived intangible assets, accumulated amortization	(51,618)	(43,457)
Finite-lived intangible assets, net carrying amount	87,847	95,897
Non-competition Agreement
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	9,369	9,374
Finite-lived intangible assets, accumulated amortization	(7,012)	(6,815)
Finite-lived intangible assets, net carrying amount	2,357	2,559
Other Intangibles
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	32,098	32,098
Finite-lived intangible assets, accumulated amortization	(3,036)	(2,621)
Finite-lived intangible assets, net carrying amount	$ 29,062	$ 29,477