Note 7. Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate	40.90%	31.70%	39.50%	28.50%
Discrete Tax Benefits (Charges)	$ (0.7)	$ 3.8	$ 0.6	$ 7.2
Income Taxes Receivable, Current	$ 3.8		$ 3.8		$ 10.6