Fair Value Disclosures (Level 4 debt fv) (Details 4) - USD ($) $ in Thousands	Oct. 31, 2021	Oct. 31, 2020
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