Summary of Significant Accounting Policies (Details Textuals) (USD $) In Millions, unless otherwise specified	Sep. 30, 2011	Jul. 29, 2011	Dec. 31, 2010
Summary of Significant Accounting Policies (Textuals) [Abstract]
Investments in unconsolidated affiliates accounted for using equity method	$ 320.5		$ 265.8
Investments in unconsolidated affiliates accounted for using cost method	2.5		1.9
Assets held for sale include investments in unconsolidated affiliates accounted for using the equity method	$ 13.6		$ 79.5
Equity Interest acquired	50.00%	50.00%

This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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