Receivables, Prepaid Expenses and Other Assets Receivables, prepaid expenses and other assets (Details Textual) - USD ($) $ in Thousands	Oct. 31, 2021	Oct. 31, 2020
Receivables, prepaid expenses and other assets [Line Items]
Assets related to consolidated VIEs	$ 11,537,850	$ 11,065,733
Escrow cash held by our captive title company	41,429	24,712
Variable Interest Entity, Primary Beneficiary [Member]
Receivables, prepaid expenses and other assets [Line Items]
Assets related to consolidated VIEs	$ 90,800	$ 163,000