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Fair Value Disclosures (Level 4 debt fv) (Details 4) - USD ($) $ in Thousands | Oct. 31, 2021 | Oct. 31, 2020
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Book value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | $ 3,571,410 | $ 3,969,744
Estimate fair value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | 3,746,992 | 4,194,748
Fair Value, Inputs, Level 1 [Member] | Book value [Member] | Senior Notes [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | 2,409,856 | 2,669,876
Fair Value, Inputs, Level 1 [Member] | Estimate fair value [Member] | Senior Notes [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | 2,577,818 | 2,888,822
Fair Value, Inputs, Level 2 [Member] | Book value [Member] | Loans Payable [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | 1,014,042 | 1,151,257
Fair Value, Inputs, Level 2 [Member] | Book value [Member] | Warehouse Agreement Borrowings [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | 147,512 | 148,611
Fair Value, Inputs, Level 2 [Member] | Estimate fair value [Member] | Loans Payable [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | 1,021,662 | 1,157,315
Fair Value, Inputs, Level 2 [Member] | Estimate fair value [Member] | Warehouse Agreement Borrowings [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt instrument, fair value disclosure | $ 147,512 | $ 148,611

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