INCOME TAXES (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	$ 35,328,000	$ 3,436,000	$ 8,929,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	2,800,000	3,400,000	4,100,000
Undistributed Earnings of Foreign Subsidiaries	143,400,000	105,400,000
Valuation Allowance, Amount	25,600,000	11,500,000	12,900,000
Valuation Allowance, Amount Foreign Tax Credits	17,600,000	10,200,000	11,300,000
Valuation Allowance, Amount State Net Operating Loss	1,400,000	1,100,000	1,400,000
Valuation Allowance, Amount Foreign Net Operating Loss	6,600,000	200,000	200,000
Expiring Of Statutes of Limitations [Member]
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	4,100,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	1,300,000
Safety-Kleen [Member]
Income Tax Contingency [Line Items]
Valuation Allowance, Deferred Tax Asset, Change in Amount	12,500,000
Valuation Allowance, Amount Foreign Tax Credits	7,800,000
Valuation Allowance, Amount Foreign Net Operating Loss	$ 4,700,000