Fair Value Disclosure (Details 3) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Assets
Loans	$ 9.6	$ 97.3
Carrying Amount [Member]
Assets
Investment Funds	0.8	1.5
Loans	9.6	97.3
Liabilities
Recourse fixed rate debt	3,996.0	3,639.9
Recourse floating rate debt	275.2	540.0
Nonrecourse debt	9.2	15.9
Fair Value [Member]
Assets
Investment Funds	1.2	2.4
Loans	9.6	97.4
Liabilities
Recourse fixed rate debt	4,017.1	3,775.0
Recourse floating rate debt	265.6	540.0
Nonrecourse debt	$ 9.4	$ 16.6