Fair Value Disclosure (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets
Loans	$ 122.7	$ 27.2
Carrying Amount [Member]
Assets
Investment Funds	1.7	2.5
Loans		27.2
Liabilities
Recourse fixed rate debt	2,871.2	2,343.3
Recourse floating rate debt	894.7	809.1
Nonrecourse debt		130.6
Fair Value [Member]
Assets
Investment Funds	4.0	5.8
Loans	121.5	27.7
Liabilities
Recourse fixed rate debt	2,994.0	2,513.4
Recourse floating rate debt	906.2	807.9
Nonrecourse debt	$ 74.7	$ 138.2