|
Fair Value Measurements of Other Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified |
Oct. 31, 2011
|
Oct. 31, 2010
|
|---|---|---|
| Fair Value Measurements of Other Financial Instruments (Details) | ||
| Carrying value of other investments | $ 7,470 | $ 7,470 |
| Fair value of other investments | 7,470 | 7,470 |
| Carrying value of notes receivable from stock option exercises | 4,441 | 3,158 |
| Fair value of notes receivable from stock option exercises | 4,441 | 3,158 |
| Carrying value of debt | 500,000 | 500,000 |
| Fair value of debt | $ 566,047 | $ 590,692 |