Mortgage Loans (Details 1) (USD $) In Millions	Sep. 30, 2011	Sep. 30, 2010
Loss reserves related to:
Loss reserves related to mortgage operations	$ 33.0	$ 39.0
Other mortgage loans [Member]
Loss reserves related to:
Loss reserves related to mortgage operations	6.2	9.0
Real estate owned [Member]
Loss reserves related to:
Loss reserves related to mortgage operations	0.4	1.8
Loan repurchase and settlement obligations - known and expected [Member]
Loss reserves related to:
Loss reserves related to mortgage operations	$ 26.4	$ 28.2