Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) [Abstract]
Net Income	$ (4.4)	$ 12.3	$ (1.6)	$ 22.1
Defined benefit pension plans:
Net loss and prior service credit	(1.9)		(1.9)
Less: amortization of prior service cost (credit) included in net periodic pension cost	(0.4)	0.2	(0.4)	0.4
Less: amortization of net loss included in net periodic pension cost	2.2	1.3	3.9	2.6
Income taxes	0	(0.6)	(0.9)	(1.2)
Other Comprehensive Income	(0.1)	0.9	0.7	1.8
Comprehensive Income (Loss)	$ (4.5)	$ 13.2	$ (0.9)	$ 23.9