Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income taxes expense (benefit) at U.S. statutory rate	$ (9.7)	$ (9.3)	$ 4.5
State and local income taxes, net of federal benefit	0	0	(0.1)
Foreign tax rate differential	(0.1)	0.2	0.2
Valuation allowances	11.0	(2.1)	(88.7)
Tax attribute expiration	0	9.1	68.5
Intra-period allocation	(0.1)	7.1	(4.8)
Release of uncertain tax positions	0	0	(4.5)
Tax refunds	0	(0.4)	(1.0)
Deemed foreign dividend	0	0	15.7
Deferred tax adjustments	(0.1)	4.0	0
Transfer pricing	0	2.2	0
Tax exempt income	(2.8)	(5.8)	0
Non-deductible expense	2.4	1.9	0
Other items, net	(0.1)	0.8	0
Provision for (benefit from) income taxes from continuing operations	$ 0.5	$ 7.7	$ (10.2)