|
Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified |
Oct. 31, 2011
|
Oct. 31, 2010
|
|---|---|---|
| Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] | ||
| Unamortized loss on derivative instrument, net of tax | $ (1,714) | $ (2,003) |
| Net unrealized gains on available-for-sale securities, net of tax | 3,386 | 2,041 |
| Foreign currency translation adjustments, net of tax | (332) | (473) |
| Total accumulated other comprehensive income (loss) | $ 1,340 | $ (435) |