|
Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
|
Oct. 31, 2012
|
Oct. 31, 2011
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
$ 486,933 |
$ 287,735 |
| Bank loans and other investments |
430,583 |
462,586 |
| Senior and subordinated note obligations |
446,605 |
477,699 |
|
Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
31,148 |
39,841 |
|
Collateralized Loan Obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
350 |
278 |
|
Equity Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
257,652 |
46,900 |
|
Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
7,530 |
7,507 |
|
Level 1 [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
16,390 |
6,691 |
| Total financial assets |
170,288 |
172,831 |
|
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 |
34,561 |
15,829 |
| Bank loans and other investments |
98 |
85 |
|
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 |
87,991 |
102,790 |
|
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 |
4,512 |
11,308 |
|
Level 1 [Member] | Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
26,736 |
36,128 |
|
Level 2 [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash equivalents |
139,469 |
360,676 |
| Derivative instruments |
2,229 |
1,060 |
| Total financial assets |
672,202 |
901,188 |
|
Level 2 [Member] | Financial Liabilities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Derivative instruments |
788 |
6,654 |
| Securities sold, not yet purchased |
26,142 |
6,270 |
| Total financial liabilities |
29,589 |
12,924 |
|
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 |
2,659 |
|
|
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 |
428,282 |
456,591 |
|
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 |
31,457 |
5,197 |
|
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 |
66,293 |
73,914 |
|
Level 2 [Member] | Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
4,412 |
3,713 |
|
Level 2 [Member] | Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
60 |
37 |
|
Level 3 [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total financial assets |
2,203 |
5,910 |
|
Level 3 [Member] | Financial Liabilities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total financial liabilities |
443,946 |
477,699 |
|
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 |
443,946 |
477,699 |
|
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 |
2,203 |
5,910 |
|
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 |
265,472 |
54,648 |
|
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 |
350 |
278 |
|
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 |
257,652 |
46,900 |
|
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 |
155,859 |
367,367 |
| Derivative instruments |
2,229 |
1,060 |
| Total financial assets |
1,110,165 |
1,134,577 |
|
Total Fair Value [Member] | Financial Liabilities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Derivative instruments |
788 |
6,654 |
| Securities sold, not yet purchased |
26,142 |
6,270 |
| Total financial liabilities |
473,535 |
490,623 |
|
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 |
446,605 |
477,699 |
|
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 |
34,561 |
15,829 |
| Bank loans and other investments |
430,583 |
462,586 |
|
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 |
119,448 |
107,987 |
|
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 |
70,805 |
85,222 |
|
Total Fair Value [Member] | Available-for-sale Securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
31,148 |
39,841 |
|
Total Fair Value [Member] | Collateralized Loan Obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
350 |
278 |
|
Total Fair Value [Member] | Equity Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
257,652 |
46,900 |
|
Total Fair Value [Member] | Cost Method Investments [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Investments |
$ 7,530 |
$ 7,507 |