GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Indefinite-lived Intangible Assets by Major Class [Line Items]
Indefinite lived intangible assets, facility environmental permits	$ 93,600,000		$ 93,600,000		$ 85,200,000
Amortization	$ 3,500,000	$ 2,200,000	$ 6,893,000	$ 4,134,000
Customer relationships
Indefinite-lived Intangible Assets by Major Class [Line Items]
Finite lived intangible assets useful life, Minimum			15
Finite lived intangible assets useful life, Maximum			40
Finite lived intangible assets, weighted average remaining useful life			33.7
Covenants not-to-compete
Indefinite-lived Intangible Assets by Major Class [Line Items]
Finite lived intangible assets useful life, Minimum			2
Finite lived intangible assets useful life, Maximum			10
Finite lived intangible assets, weighted average remaining useful life			5.8
Tradenames
Indefinite-lived Intangible Assets by Major Class [Line Items]
Finite lived intangible assets useful life, Minimum			20
Finite lived intangible assets useful life, Maximum			40
Finite lived intangible assets, weighted average remaining useful life			30.3
Market Approach, Goodwill Impairment Test | Lower Limit
Indefinite-lived Intangible Assets by Major Class [Line Items]
Goodwill impairment test, fair value exceeding book value, percentage	100.00%		100.00%
Income Approach, Goodwill Impairment Test | Lower Limit
Indefinite-lived Intangible Assets by Major Class [Line Items]
Goodwill impairment test, fair value exceeding book value, percentage	100.00%		100.00%