Fair Value Disclosure (Details 3) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Assets
Loans	$ 7.7	$ 8.8
Carrying Amount [Member]
Assets
Investment Funds	0.6	0.6
Loans	7.7	8.8
Liabilities
Recourse fixed rate debt	3,723.7	3,915.0
Recourse floating rate debt	600.5	275.2
Nonrecourse debt	4.7	6.9
Fair Value [Member]
Assets
Investment Funds	1.4	1.2
Loans	7.7	8.7
Liabilities
Recourse fixed rate debt	3,702.7	3,882.6
Recourse floating rate debt	567.3	264.6
Nonrecourse debt	$ 4.7	$ 7.1