Income Taxes 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
Income Tax Disclosure [Abstract]
Effective income tax rate	42.40%	28.90%	38.60%	26.80%
Tax Adjustments, Settlements, and Unusual Provisions	$ 1.4		$ 1.4