SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Safety-Kleen
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowance, Deferred Tax Asset, Change in Amount		$ 13,800,000
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Period	1,246,000	1,830,000	2,084,000
Additions (deductions) charged	7,933,000	1,213,000	759,000
Changes to Reserves	1,825,000	1,797,000	1,013,000
Balance End of Period	7,354,000	1,246,000	1,830,000
Allowance for Sales Returns
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Period	9,879,000	10,853,000	21,620,000
Additions (deductions) charged	16,401,000	18,847,000	13,846,000
Changes to Reserves	15,528,000	19,821,000	24,613,000
Balance End of Period	10,752,000	9,879,000	10,853,000
Valuation Allowance on Deferred Tax Assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance Beginning of Period	26,325,000	11,473,000	12,919,000
Additions (deductions) charged	(1,545,000)	(196,000)	(1,593,000)
Changes to Reserves	4,946,000	15,048,000	147,000
Balance End of Period	$ 29,726,000	$ 26,325,000	$ 11,473,000