GOODWILL AND OTHER INTANGIBLE ASSETS (Amortizable Other Intangible Assets) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	$ 609,426	$ 599,317
Accumulated Amortization	255,946	223,219
Net	$ 353,480	$ 376,098
Weighted Average Remaining Amortization Period (in years)	14 years 2 months 4 days	13 years 9 months 40 days
Total permits and other intangible assets, Cost	$ 733,585	$ 721,940
Total permits and other intangible assets, Net	477,639	498,721
Trademarks and trade names
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Trademarks and trade names	124,159	122,623
Permits
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	174,571	171,637
Accumulated Amortization	72,788	67,301
Net	$ 101,783	$ 104,336
Weighted Average Remaining Amortization Period (in years)	21 years 2 months 4 days	18 years 9 months 40 days
Customer and supplier relationships
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	$ 398,778	$ 393,426
Accumulated Amortization	151,744	127,462
Net	$ 247,034	$ 265,964
Weighted Average Remaining Amortization Period (in years)	11 years 6 months 6 days	12 years 2 months
Other intangible assets
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Cost	$ 36,077	$ 34,254
Accumulated Amortization	31,414	28,456
Net	$ 4,663	$ 5,798
Weighted Average Remaining Amortization Period (in years)	7 years 3 months	7 years 1 month