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Fair Value Measurements Level 3 (Details) (USD $) In Thousands, unless otherwise specified
|
12 Months Ended |
|
Oct. 31, 2012
|
Oct. 31, 2011
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
| Principal repayments of senior notes |
$ (28,614) |
|
|
Bank Loans And Other Investments Of Consolidated CLO Entity [Member]
|
|
|
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
| Fair value measurements with unobservable inputs reconciliation recurring basis asset value, beginning of period (asset) |
5,910 |
0 |
| Adjustment for adoption of new consolidation guidance |
|
5,265 |
| Net gains (losses) on investments and note obligations included in net income |
(333) |
1,314 |
| Purchases, sales and settlements, net (asset) |
|
(1,353) |
| Payment in-kind |
5 |
|
| Transfers into Level 3 (asset) |
437 |
|
| Transfers out of Level 3 (asset) |
(3,816) |
|
| Net transfers in and/or out of Level 3 (asset) |
|
684 |
| Fair value measurements with unobservable inputs reconciliation recurring basis asset value, end of period (asset) |
2,203 |
5,910 |
| Change in unrealized (losses) and gains included in net income relating to assets and liabilities held (asset) |
(333) |
1,314 |
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Senior And Subordinated Note Obligations Of Consolidated CLO [Member]
|
|
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| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
| Fair value measurements with unobservable inputs reconciliation recurring basis liability value, beginning of period (liability) |
477,699 |
0 |
| Adjustment for adoption of new consolidation guidance |
|
444,087 |
| Net gains (losses) on investments and note obligations included in net income |
(2,480) |
33,612 |
| Principal repayments of senior notes |
(28,614) |
|
| Transfers out of Level 3 (liability) |
(2,659) |
|
| Fair value measurements with unobservable inputs reconciliation recurring basis liability value, end of period (liability) |
443,946 |
477,699 |
| Change in unrealized (losses) and gains included in net income relating to assets and liabilities held (liability) |
$ (2,480) |
$ 33,612 |
| Senior and subordinated note obligations prepayment rate |
30.00% |
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| Senior and subordinated note obligations recovery rate |
70.00% |
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| Senior and subordinated note obligations probability of default |
2.00% |
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| Senior and subordinated note obligations minimum discount rate |
1.35% |
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| Senior and subordinated note obligations maximum discount rate |
7.00% |
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