|
Derivative Financial Instruments Not Designated for Hedge Accounting (Details) (USD $)
In Thousands, unless otherwise specified
|
12 Months Ended |
|
Oct. 31, 2011
|
Oct. 31, 2010
|
Oct. 31, 2009
|
|
Foreign Exchange Contracts [Member]
|
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Other assets fair value |
$ 24 |
$ 12 |
|
| Other liabilities fair value |
124 |
1,187 |
|
| Net gains on investments and derivatives |
(1,495) |
(810) |
|
|
Stock Index Futures Contracts [Member]
|
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Other assets fair value |
157 |
489 |
|
| Other liabilities fair value |
6,363 |
1,415 |
|
| Net gains on investments and derivatives |
(2,658) |
(1,923) |
42 |
|
Commodity Futures Contracts [Member]
|
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Other assets fair value |
879 |
81 |
|
| Other liabilities fair value |
167 |
917 |
|
| Net gains on investments and derivatives |
305 |
(836) |
|
|
Total [Member]
|
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Other assets fair value |
1,060 |
582 |
|
| Other liabilities fair value |
6,654 |
3,519 |
|
| Net gains on investments and derivatives |
$ (3,848) |
$ (3,569) |
$ 42 |