|
Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
|
Apr. 30, 2013
|
Oct. 31, 2012
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
$ 542,058 |
$ 486,933 |
| Bank loans and other investments |
319,321 |
430,583 |
| Senior and subordinated note obligations |
368,127 |
446,605 |
|
Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
19,770 |
31,148 |
|
Collateralized Loan Obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
314 |
350 |
|
Equity Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
229,422 |
257,652 |
|
Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
7,531 |
7,530 |
|
Level 1 [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
10,222 |
16,390 |
| Total financial assets |
247,047 |
170,288 |
|
Level 1 [Member] | Assets Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
59,485 |
34,561 |
| Bank loans and other investments |
0 |
98 |
|
Level 1 [Member] | Categories of Investments, Marketable Securities, Trading Securities [Member] | Equity Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
124,808 |
87,991 |
|
Level 1 [Member] | Categories of Investments, Marketable Securities, Trading Securities [Member] | Debt Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
37,846 |
4,512 |
|
Level 1 [Member] | Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
14,686 |
26,736 |
|
Level 2 [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
126,947 |
139,469 |
| Derivative instruments |
1,174 |
2,229 |
| Total financial assets |
572,135 |
672,202 |
|
Level 2 [Member] | Financial Liabilities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Derivative instruments |
6,453 |
788 |
| Securities sold, not yet purchased |
1,603 |
26,142 |
| Total financial liabilities |
10,723 |
29,589 |
|
Level 2 [Member] | Financial Liabilities [Member] | Liabilities Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Senior and subordinated note obligations |
2,667 |
2,659 |
|
Level 2 [Member] | Assets Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Bank loans and other investments |
316,502 |
428,282 |
|
Level 2 [Member] | Categories of Investments, Marketable Securities, Trading Securities [Member] | Equity Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
61,988 |
31,457 |
|
Level 2 [Member] | Categories of Investments, Marketable Securities, Trading Securities [Member] | Debt Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
60,379 |
66,293 |
|
Level 2 [Member] | Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
5,084 |
4,412 |
|
Level 2 [Member] | Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
61 |
60 |
|
Level 3 [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total financial assets |
2,819 |
2,203 |
|
Level 3 [Member] | Financial Liabilities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total financial liabilities |
365,460 |
443,946 |
|
Level 3 [Member] | Financial Liabilities [Member] | Liabilities Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Senior and subordinated note obligations |
365,460 |
443,946 |
|
Level 3 [Member] | Assets Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Bank loans and other investments |
2,819 |
2,203 |
|
Other Assets Not Held At Fair Value Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total financial assets |
237,206 |
265,472 |
|
Other Assets Not Held At Fair Value Investments [Member] | Collateralized Loan Obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
314 |
350 |
|
Other Assets Not Held At Fair Value Investments [Member] | Equity Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
229,422 |
257,652 |
|
Other Assets Not Held At Fair Value Investments [Member] | Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
7,470 |
7,470 |
|
Total Fair Value [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
137,169 |
155,859 |
| Derivative instruments |
1,174 |
2,229 |
| Total financial assets |
1,059,207 |
1,110,165 |
|
Total Fair Value [Member] | Financial Liabilities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Derivative instruments |
6,453 |
788 |
| Securities sold, not yet purchased |
1,603 |
26,142 |
| Total financial liabilities |
376,183 |
473,535 |
|
Total Fair Value [Member] | Financial Liabilities [Member] | Liabilities Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Senior and subordinated note obligations |
368,127 |
446,605 |
|
Total Fair Value [Member] | Assets Of Consolidated Collateralized Loan Obligation Entity [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
59,485 |
34,561 |
| Bank loans and other investments |
319,321 |
430,583 |
|
Total Fair Value [Member] | Categories of Investments, Marketable Securities, Trading Securities [Member] | Equity Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
186,796 |
119,448 |
|
Total Fair Value [Member] | Categories of Investments, Marketable Securities, Trading Securities [Member] | Debt Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
98,225 |
70,805 |
|
Total Fair Value [Member] | Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
19,770 |
31,148 |
|
Total Fair Value [Member] | Collateralized Loan Obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
314 |
350 |
|
Total Fair Value [Member] | Equity Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
229,422 |
257,652 |
|
Total Fair Value [Member] | Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
$ 7,531 |
$ 7,530 |