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Fair Value Disclosures (Level 4 debt fv) (Details 2) - USD ($) $ in Thousands | Jan. 31, 2023 | Oct. 31, 2022
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Book value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | $ 3,218,471 | $ 3,335,906
Book value [Member] | Fair Value, Inputs, Level 2 [Member] | Loans Payable [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 1,147,284 | 1,187,043
Book value [Member] | Fair Value, Inputs, Level 2 [Member] | Warehouse Agreement Borrowings [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 71,187 | 148,863
Book value [Member] | Fair Value, Inputs, Level 1 [Member] | Senior Notes [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 2,000,000 | 2,000,000
Estimate fair value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 3,127,650 | 3,152,011
Estimate fair value [Member] | Fair Value, Inputs, Level 2 [Member] | Loans Payable [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 1,136,368 | 1,180,893
Estimate fair value [Member] | Fair Value, Inputs, Level 2 [Member] | Warehouse Agreement Borrowings [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 71,187 | 148,863
Estimate fair value [Member] | Fair Value, Inputs, Level 1 [Member] | Senior Notes [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | $ 1,920,095 | $ 1,822,255

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