EQUITY (Details 2) (Common Class A, USD $) In Millions, except Share data	1 Months Ended	3 Months Ended
	Oct. 31, 2011	Sep. 30, 2011
Common Class A
Class of Stock
Additional purchase of Class A Common Stock (in shares)	926,900	4,050,300
Additional purchase of Class A Common Stock (in dollars)	$ 80.8	$ 402.9