Stock Plans (Schedule of Estimated Fair Value of Stock Option Award Granted) (Details) (Stock Options [Member])
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12 Months Ended | ||
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Oct. 31, 2012
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Oct. 31, 2011
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Oct. 31, 2010
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|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Expected life | 5 years 3 months 18 days | ||
Expected volatility | 41.00% | ||
Dividend yield | 0.09% | 0.12% | 0.21% |
Minimum [Member]
|
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Expected life | 4 years 3 months 18 days | 4 years 6 months | |
Expected volatility | 39.50% | 40.20% | |
Risk-free interest rate | 0.69% | 1.01% | 2.26% |
Maximum [Member]
|
|||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Expected life | 5 years 8 months 12 days | 5 years 8 months 12 days | |
Expected volatility | 43.80% | 41.30% | |
Risk-free interest rate | 1.08% | 1.41% | 2.43% |