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Income Taxes (Tables) | 6 Months Ended
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Apr. 30, 2013
Income Tax Disclosure [Abstract] |
Reconciliation of Company's effective tax rate from federal statutory rate | The tables below provide, for the periods indicated, reconciliations of the Company’s effective tax rate from the federal statutory tax rate (amounts in thousands).
| Six months ended April 30,
| 2013 |  | 2012
| $ |  | %* |  | $ |  | %*
Federal tax provision at statutory rate | 17,253 |  |  | 35.0 |  |  | 3,234 |  |  | 35.0 |
State tax provision, net of federal benefit | 2,051 |  |  | 4.2 |  |  | 391 |  |  | 4.2 |
Increase in unrecognized tax benefits |  |  |  |  |  | 277 |  |  | 3.0 |
Reversal of accrual for uncertain tax positions |  |  |  |  |  |  | (5,279 | ) |  | (57.1 | )
Increase in deferred tax assets – net |  |  |  |  |  |  | (2,100 | ) |  | (22.7 | )
Valuation allowance – reversed | (1,277 | ) |  | (2.6 | ) |  | (3,318 | ) |  | (35.9 | )
Accrued interest on anticipated tax assessments | 1,982 |  |  | 4.0 |  |  | 1,950 |  |  | 21.1 |
Other | 179 |  |  | 0.4 |  |  |  |  |  |  |
Income tax provision (benefit) | 20,188 |  |  | 41.0 |  |  | (4,845 | ) |  | (52.4 | )
| Three months ended April 30,
| 2013 |  | 2012
| $ |  | %* |  | $ |  | %*
Federal tax provision at statutory rate | 14,339 |  |  | 35.0 |  |  | 5,477 |  |  | 35.0 |
State tax provision, net of federal benefit | 1,705 |  |  | 4.2 |  |  | 662 |  |  | 4.2 |
Increase in unrecognized tax benefits |  |  |  |  |  | (1,223 | ) |  | (7.8 | )
Increase in deferred tax assets – net |  |  |  |  |  |  | (1,575 | ) |  | (10.0 | )
Valuation allowance – reversed | (1,061 | ) |  | (2.6 | ) |  | (4,564 | ) |  | (29.2 | )
Accrued interest on anticipated tax assessments | 817 |  |  | 2.0 |  |  |  |  |  |  |
Other | 494 |  |  | 1.2 |  |  |  |  |  |  |
Income tax provision (benefit) | 16,294 |  |  | 39.8 |  |  | (1,223 | ) |  | (7.8 | )
* Due to rounding, amounts may not add.

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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