Condensed Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Income	$ 64.3	$ 26.7	$ 51.3
Other comprehensive income (loss), net:
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	0.1	2.1	(1.4)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	0.3	0.3	0.4
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 64.7	$ 29.1	$ 50.3