EQUITY INVESTMENT INCOME, NET (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Schedule of Equity Method Investments [Line Items]
Cash distributions from equity investees	$ 4.3	$ 6.1	$ 12.5	$ 14.0
Triton [Member]
Schedule of Equity Method Investments [Line Items]
Equity investment income, net	$ 3.8	$ 1.5	$ 11.2	$ 4.7