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Income Taxes (Details Textual) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2017 USD ($) | Jan. 31, 2016 USD ($) | Oct. 31, 2017 | Oct. 31, 2016 USD ($)
Income Taxes (Textual) [Abstract] |  |  |  |
Income Tax Expense | $ 39,365 | $ 43,637 |  | $ 206,932
Effective Income Tax Rate Reconciliation, Percent | 35.90% | 37.40% |  |
Number of states | 20 |  |  |
Unrecognized Tax Benefits | $ 25,800 |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range Not Possible | During the next 12 months, it is reasonably possible that our unrecognized tax benefits will change, but we are not able to provide a range of such change. |  |  |
State and Local Jurisdiction [Member] |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |
Effective Income Tax Rate Reconciliation, Percent |  |  | 7.60% | 7.00%
Deferred Tax Assets, Valuation Allowance | $ 32,200 |  |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to 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 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: 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=65882285&loc=d3e32687-109319 + Details
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