Derivative Financial Instruments Not Designated for Hedge Accounting (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2014 |
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Weighted average term of derivative contracts outstanding |
2 months 6 days
|
|
|
| Stock Index Futures Contracts [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Notional amount of other derivative financial instruments not designated for hedge accounting |
$ 125,400
|
$ 97,200
|
|
| Other assets fair value |
1,722
|
53
|
|
| Other liabilities fair value |
130
|
4,712
|
|
| Net gains (losses) recognized |
(2,931)
|
640
|
$ (12,902)
|
| Total Return Swap Contracts [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Notional amount of other derivative financial instruments not designated for hedge accounting |
40,000
|
49,500
|
|
| Other assets fair value |
0
|
0
|
|
| Other liabilities fair value |
418
|
128
|
|
| Net gains (losses) recognized |
(2,935)
|
157
|
0
|
| Foreign Exchange Contracts [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Notional amount of other derivative financial instruments not designated for hedge accounting |
18,700
|
27,200
|
|
| Other assets fair value |
350
|
133
|
|
| Other liabilities fair value |
267
|
540
|
|
| Net gains (losses) recognized |
(590)
|
1,948
|
15
|
| Commodity Futures Contracts [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Notional amount of other derivative financial instruments not designated for hedge accounting |
0
|
3,100
|
|
| Other assets fair value |
0
|
112
|
|
| Other liabilities fair value |
0
|
43
|
|
| Net gains (losses) recognized |
0
|
3,396
|
720
|
| Interest Rate Futures Contracts [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Net gains (losses) recognized |
0
|
(181)
|
(75)
|
| Interest Rate Swap Contracts [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Net gains (losses) recognized |
0
|
(21)
|
0
|
| Total [Member] |
|
|
|
| Derivative Instruments Not Designated As Hedging Instruments [Line Items] |
|
|
|
| Other assets fair value |
2,072
|
298
|
|
| Other liabilities fair value |
815
|
5,423
|
|
| Net gains (losses) recognized |
$ (6,456)
|
$ 5,939
|
$ (12,242)
|