|
Adoption of New Accounting Standards (Details) (USD $)
In Millions, unless otherwise specified |
Oct. 31, 2012
|
Oct. 31, 2011
|
|---|---|---|
| Adoption Of New Accounting Standards Disclosure Details [Abstract] | ||
| Consolidated CLO entity with non-recourse assets | $ 487.0 | |
| Consolidated CLO entity with non-recourse liabilities | 456.3 | |
| Maximum exposure to loss on VIE direct investment and beneficial interest | 1.9 | |
| Maximum exposure to loss on VIE investment management fees receivable | $ 0.5 |