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Fair Value Disclosures (Level 4 debt fv) (Details 2) - USD ($) $ in Thousands | Apr. 30, 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 | $ 2,842,358 | $ 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 | 1,139,869 | 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 | 102,489 | 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 | 1,600,000 | 2,000,000
Estimate fair value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 2,763,240 | 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 | 1,123,766 | 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 | 102,489 | 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 | $ 1,536,985 | $ 1,822,255

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