GOODWILL AND OTHER INTANGIBLE ASSETS (Amortizable Other Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	$ 570,957		$ 570,957		$ 558,605
Accumulated Amortization	175,042		175,042		152,089
Net	395,915		$ 395,915		$ 406,516
Weighted Average Remaining Amortization Period (in years)			10 years 157 days		11 years 4 months 18 days
Total permits and other intangible assets, Cost	694,037		$ 694,037		$ 682,169
Total permits and other intangible assets, Net	518,995		518,995		530,080
Amortization of intangible assets	9,900	$ 9,100	29,700	$ 27,500
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible asset, cost	123,080		123,080		123,564
Permits
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	161,641		161,641		156,692
Accumulated Amortization	60,091		60,091		55,318
Net	101,550		$ 101,550		$ 101,374
Weighted Average Remaining Amortization Period (in years)			18 years 329 days		19 years
Customer and supplier relationships
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	377,373		$ 377,373		$ 370,373
Accumulated Amortization	93,786		93,786		77,697
Net	283,587		$ 283,587		$ 292,676
Weighted Average Remaining Amortization Period (in years)			10 years 95 days		11 years
Other intangible assets
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	31,943		$ 31,943		$ 31,540
Accumulated Amortization	21,165		21,165		19,074
Net	$ 10,778		$ 10,778		$ 12,466
Weighted Average Remaining Amortization Period (in years)			2 years 69 days		3 years 2 months