Intangible Assets, Net (Intangible Assets Exclusive of Goodwill) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 398,508	$ 389,857
Intangible assets, exclusive of goodwill, gross	652,151	643,500
Finite-lived intangible assets, accumulated amortization	(142,156)	(115,629)
Finite-lived intangible assets, net carrying amount	256,352us-gaap_FiniteLivedIntangibleAssetsNet	274,228us-gaap_FiniteLivedIntangibleAssetsNet
Intangible assets, net, exclusive of goodwill	509,995	527,871
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 [Member]
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 [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, accumulated amortization
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
Indefinite-lived intangible assets, accumulated amortization
Indefinite-lived intangible assets	59,855	59,855
Long-term Franchise Agreements and Contracts [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	195,676	196,110
Finite-lived intangible assets, accumulated amortization	(52,448)	(45,114)
Finite-lived intangible assets, net carrying amount	143,228	150,996
Customer Lists [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	161,463	152,378
Finite-lived intangible assets, accumulated amortization	(77,931)	(59,950)
Finite-lived intangible assets, net carrying amount	83,532	92,428
Permits and Non-Competition Agreements [Member]
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	41,369	41,369
Finite-lived intangible assets, accumulated amortization	(11,777)	(10,565)
Finite-lived intangible assets, net carrying amount	$ 29,592	$ 30,804

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets, excluding goodwill.

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