EQUITY INVESTMENT INCOME, NET (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Schedule of Equity Method Investments [Line Items]
Cash distributions from equity investees	$ 4.1	$ 5.4	$ 8.2	$ 7.9
Triton [Member]
Schedule of Equity Method Investments [Line Items]
Equity investment income, net	$ 3.2	$ 1.8	$ 7.4	$ 3.2