Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate			35.00%	35.00%
Continuing operations	$ (6.7)	$ 24.3	$ (12.3)	$ 47.2
Discontinued operations	0	0	0	0.2
Total tax provision (benefit)			(12.3)	47.4
Continuing operations effective tax rate			(50.00%)	23.00%
Discontinued operation effective tax rate			35.00%	35.00%
Total effective tax rate			(50.00%)	23.00%
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	13.2		13.2
Payment of long-term deposit					$ (17.1)