INVESTMENTS IN UNCONSOLIDATED AFFILIATES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Available-for-sale investments
Cost		$ 0.4		$ 2.0
Unrealized gains		2.2		1.3
Fair value of available-for-sale investments		2.6		3.3
Equity method investments
Cost		13.6		12.6
Equity in losses		(0.4)		(0.7)
Carrying value of equity method investments		13.2		11.9
Cost method investments
Carrying value of cost method investments		7.6		6.6
Total investments in unconsolidated affiliates		23.4		21.8
Proceeds from sales of available-for-sale investments	3.6	2.1	3.6
Realized pre-tax gains on sales of available-for-sale investments	$ 1.4	$ 0.4	$ 1.4

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Equity securities categorized neither as held-to-maturity nor trading which are intended be sold more than one year from the balance sheet date or operating cycle, if longer.

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