Fair Value Disclosure (Details 3) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Assets
Loans	$ 100.5	$ 122.7
Carrying Amount [Member]
Assets
Investment Funds	1.5	1.7
Loans	100.5	122.7
Liabilities
Recourse fixed rate debt	3,408.4	2,871.2
Recourse floating rate debt	673.4	894.7
Nonrecourse debt	18.1	72.6
Fair Value [Member]
Assets
Investment Funds	2.8	4.0
Loans	100.6	121.5
Liabilities
Recourse fixed rate debt	3,555.4	2,994.0
Recourse floating rate debt	679.6	906.2
Nonrecourse debt	$ 18.9	$ 74.7