Fair Value of Assets and Liabilities Measured at Fair Value on a Recurring Basis Level 3 (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2014 |
| Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
|
| Principal repayments of senior and subordinated note obligations |
$ 0
|
$ (179,166)
|
$ (128,362)
|
| 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) |
0
|
801
|
|
| Net gains (losses) on investments and note obligations included in net income |
56
|
(281)
|
|
| Purchases (asset) |
72
|
|
|
| Sales (asset) |
(756)
|
(137)
|
|
| Transfers into Level 3 (asset) |
700
|
|
|
| Transfers out of Level 3 (asset) |
|
(383)
|
|
| Deconsolidation of CLO entity (asset) |
(72)
|
|
|
| Fair value measurements with unobservable inputs reconciliation recurring basis asset value, end of period (asset) |
0
|
0
|
801
|
| Change in unrealized gains (losses) included in net income relating to assets and liabilities held (asset) |
0
|
0
|
|
| Senior And Subordinated Note Obligations 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 liability value, beginning of period (liability) |
0
|
149,310
|
|
| Net gains (losses) on investments and note obligations included in net income |
2,846
|
(2,426)
|
|
| Interest in CLO subordinated obligations previously eliminated in consolidation |
|
1,379
|
|
| Amortization of original issue discount |
457
|
|
|
| Principal repayments of senior and subordinated note obligations |
|
(144,166)
|
|
| Transfers into Level 3 (liability) |
390,654
|
|
|
| Deconsolidation of CLO entity (liability) |
(393,957)
|
(4,097)
|
|
| Fair value measurements with unobservable inputs reconciliation recurring basis liability value, end of period (liability) |
0
|
0
|
$ 149,310
|
| Change in unrealized gains (losses) included in net income relating to assets and liabilities held (liability) |
$ 0
|
$ 0
|
|