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Employee Benefit Plans (Equity Compensation Plans - 2005 Non-Employee Directors Equity Incentive Plan) (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified | 12 Months Ended |  | 0 Months Ended | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Oct. 31, 2011 2005 Non-Employee Directors Equity Incentive Plan [Member] | May 23, 2005 2005 Non-Employee Directors Equity Incentive Plan [Member] | Apr. 25, 2006 2005 Director Plan [Member] | Oct. 31, 2011 2005 Director Plan [Member] | Oct. 31, 2010 2005 Director Plan [Member] | Oct. 31, 2011 2005 Director Plan Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Reserved for future issuance |  | 300,000 |  | 393,653 |  |
Shares increase number of shares reserved for future issuance under the 2005 Directors Plan |  |  | 500,000 |  |  |
Restricted stock awards issued |  |  |  | 246,041 |  |
Aggregate grant date fair value of restricted stock awards |  |  |  | $ 5.4 |  |
Aggregate stock options granted under 2005 director plan |  |  |  | 123,649 |  |
Vesting period, minimum (in years) |  |  |  |  |  | three
Vesting period, maximum (in years) |  |  |  |  |  | four
Fair value of option shares granted | $ 3.3 |  |  |  |  |
Aggregate stock options outstanding | 123,649 |  |  |  |  |
Aggregate restricted stock award outstanding |  |  |  | 54,000 | 57,000 |

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