INVESTMENTS-AFFILIATED COMPANIES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Feb. 28, 2011	Dec. 31, 2013 SunBelt [Member]	Dec. 31, 2012 SunBelt [Member]	Dec. 31, 2011 SunBelt [Member]	Feb. 28, 2011 SunBelt [Member]	Dec. 31, 2013 Bleach Joint Venture [Member]	Dec. 31, 2012 Bleach Joint Venture [Member]	Dec. 31, 2011 Bleach Joint Venture [Member]	Nov. 16, 2007 Bleach Joint Venture [Member]	Dec. 31, 2013 Bay Gas [Member]	Dec. 31, 2012 Bay Gas [Member]	Dec. 31, 2011 Bay Gas [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of ownership in SunBelt prior to acquiring remaining 50%				50.00%				50.00%
Equity Method Investment, Aggregate Cost												$ 11.6
Gain (Loss) on Sale of Equity Investments	6.5	0	0						6.5
Receivable from the sale of an equity method investment									15.6
Limited partner interest (in hundredths)													9.10%
General partner interest (in hundredths)													90.90%
Equity Method Investments	21.6	29.3							0	9.8			21.6	19.5
Total earnings of non-consolidated affiliates	2.8	3.0	9.6		0	0	6.3		0.7	0.6	0.9		2.1	2.4	2.4
Distributions from our non-consolidated affiliates	$ 1.5	$ 1.3	$ 1.9