Consolidated Statement of Comprehensive Income Parentheticals (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statement of Comprehensive Income Parentheticals [Abstract]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$ 0	$ (0.3)	$ 0.1	$ (0.2)
Unrealized Gain on Derivatives, Tax	0	(0.1)	0.1	0
Defined Benefit Pension and Other Postretirement Benefit Plans, Tax	$ 0.2	$ 0.3	$ 0.6	$ 0.8