Investments (Tables)

9 Months Ended

Sep. 30, 2012

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

	September 30, 2012				December 31, 2011
	Amortized		Fair		Amortized		Fair
	Cost Basis		Value		Cost Basis		Value
Money Market Funds	$	0.5	$	0.5	$	1.4	$	1.4
U.S. Equity Funds		6.4		9.0		7.1		9.5
International Equity Funds		4.1		4.4		5.4		5.3
Municipal Bond Funds		6.7		7.2		7.9		8.3
Total	$	17.7	$	21.1	$	21.8	$	24.5