COMMITMENTS AND CONTINGENCIES (Details)	1 Months Ended	12 Months Ended			12 Months Ended							12 Months Ended
	Oct. 31, 2010 customer	Dec. 31, 2013 USD ($) claims sites Proceedings	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 Legal and Administrative Proceedings USD ($)	Dec. 31, 2012 Legal and Administrative Proceedings USD ($)	Dec. 31, 2012 Ville Mercier CAD	Dec. 31, 1999 Ville Mercier Municipalities	Dec. 31, 1968 Ville Mercier Permits	Dec. 31, 2013 Ville Mercier USD ($)	Dec. 31, 2012 Ville Mercier USD ($)	Dec. 31, 2013 Superfund Proceedings USD ($) sites facilties	Dec. 31, 2002 Wichita Property acre	Dec. 31, 2013 Certain Other Third Party Sites sites	Dec. 31, 2013 Safety-Kleen sites	Dec. 31, 2013 Federal and State Enforcement Actions USD ($) Proceedings	Dec. 31, 2012 Federal and State Enforcement Actions USD ($) Proceedings
Legal and Administrative Proceedings
Loss Contingency Accrual, at Carrying Value		$ 41,700,000	$ 38,600,000		$ 34,600,000
Possible increase in legal and administrative proceedings					3,500,000	3,500,000						100,000
Reserves relating to legal and administrative proceedings																7,100,000
Number of permits issued by government, for dumping organic liquid									2
Number of neighboring municipalities filing separate legal proceedings against the Mercier Subsidiary and the Government of Quebec								3
General Damages Sought							2,900,000
Punitive Damages Sought							10,000,000
Accrued remedial liabilities		172,498,000	183,346,000	135,320,000	34,600,000					13,600,000	14,200,000
Loss Contingency, Claims Settled and Dismissed, Number		26
Number of proceedings		66														5	4
Number of customers filing a complaint	2
Superfund Proceedings
Number of sites subject to proceedings under federal or state superfund laws												123
Number of sites owned by the entity subject to proceedings under federal or state superfund laws		123										2
Number of sites owned by third parties subject to proceedings under federal or state Superfund laws												121
Third party sites requiring expenditure on remediation												20
Number of sites for which environmental remediation expense is settled												29
Number of sites for which environmental remediation expense is not required												72
Number of sites which potential liability could exceed $100,000												16
State-designated superfund site acquired, total acres													1,400
Indemnification agreement with third party sites														11
Notices received from owners of third party sites seeking indemnification from the company												5			16
Federal and State Enforcement Actions
Number of proceedings		66														5	4
Sanctions relating to waste treatment																$ 100,000,000	$ 100,000
Imputed Interest Minimum		4.00%
Imputed Interest Rate Maximum		16.00%