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Loans Payable, Senior Notes and Mortgage Company Loan Facility Mortgage Company Loan Facility (Details Textual 5) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Apr. 30, 2018 | Oct. 31, 2017
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 1,642,079 |
Warehouse Agreement Borrowings [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Current Borrowing Capacity | 75,000 | $ 100,000
Line of Credit Facility, Maximum Borrowing Capacity | $ 150,000 |
Debt Instrument, Maturity Date | Dec. 06, 2018 |
Debt Instrument, Interest Rate, Effective Percentage | 3.81% |
London Interbank Offered Rate (LIBOR) [Member] | Warehouse Agreement Borrowings [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.90% |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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