GOODWILL AND INTANGIBLE ASSETS (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Changes in goodwill
Balance at the beginning of the period			$ 21,693,000
Additions			192,633,000
Foreign Currency Translation			(967,000)
Balance at the end of the period	213,359,000		213,359,000
Total amortizing intangible assets	289,309,000		289,309,000		40,263,000
Accumulated amortization	(9,353,000)		(9,353,000)		(4,341,000)
Total intangible assets, net	280,858,000		280,858,000		36,832,000
Amortization expense	4,000,000	362,000	5,233,000	1,092,000
Expected future amortization expense of amortizing intangible assets
Remainder of 2014	4,000,000		4,000,000
2015	15,222,000		15,222,000
2016	14,541,000		14,541,000
2017	14,536,000		14,536,000
2018	13,183,000		13,183,000
Permits and licenses
Changes in goodwill
Nonamortizing intangible assets	750,000		750,000		750,000
Tradename
Changes in goodwill
Nonamortizing intangible assets	152,000		152,000		160,000
Customer relationships
Changes in goodwill
Total amortizing intangible assets	119,823,000		119,823,000		5,005,000
Permits, licenses and lease
Changes in goodwill
Total amortizing intangible assets	144,518,000		144,518,000		26,264,000
Technology - Formulae and processes
Changes in goodwill
Total amortizing intangible assets	8,145,000		8,145,000		8,551,000
Tradename
Changes in goodwill
Total amortizing intangible assets	9,900,000		9,900,000
Customer backlog
Changes in goodwill
Total amortizing intangible assets	3,600,000		3,600,000
Non-compete agreements
Changes in goodwill
Total amortizing intangible assets	1,420,000		1,420,000		20,000
Internet domain and website
Changes in goodwill
Total amortizing intangible assets	900,000		900,000
Database
Changes in goodwill
Total amortizing intangible assets	690,000		690,000		94,000
Developed software
Changes in goodwill
Total amortizing intangible assets	313,000		313,000		329,000
Operating Disposal Facilities
Changes in goodwill
Balance at the beginning of the period			21,693,000
Foreign Currency Translation			(967,000)
Balance at the end of the period	20,726,000		20,726,000
EQ Operations
Changes in goodwill
Additions			192,633,000
Balance at the end of the period	192,633,000		192,633,000
Net carrying amount of amortizing intangible assets	$ 250,900,000		$ 250,900,000