GOODWILL AND OTHER INTANGIBLE ASSETS (Finite-lived and Indefinite Lived Intangible Assets) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-lived intangible assets
Accumulated Amortization	$ 152,089,000	$ 119,190,000
Permits and other intangibles, net	530,080,000	569,973,000
Net	406,516,000
Weighted Average Amortization Period (in years)	11 years 131 days	12 years 69 days
Total permits and other intangible assets	682,169,000	689,163,000
Finite-lived intangible assets, amortization expense	36,700,000	35,100,000	17,200,000
Trademarks and trade names
Finite-lived intangible assets
Acquired indefinite-lived intangible asset, amount	123,564,000	124,638,000
Permits
Finite-lived intangible assets
Cost	156,692,000	157,327,000
Accumulated Amortization	55,318,000	50,858,000
Net	101,374,000	106,469,000
Weighted Average Amortization Period (in years)	19 years 0 days	19 years 219 days
Customer and supplier relationships
Finite-lived intangible assets
Cost	370,373,000	377,899,000
Accumulated Amortization	77,697,000	52,814,000
Net	292,676,000	325,085,000
Weighted Average Amortization Period (in years)	11 years 0 days	12 years 22 days
Other intangible assets
Finite-lived intangible assets
Cost	31,540,000	29,299,000
Accumulated Amortization	19,074,000	15,518,000
Net	12,466,000	13,781,000
Weighted Average Amortization Period (in years)	3 years 73 days	3 years 110 days
Total amortizable permits and other intangible assets
Finite-lived intangible assets
Cost	558,605,000	564,525,000
Accumulated Amortization	152,089,000	119,190,000
Net	$ 406,516,000	$ 445,335,000