Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Oct. 31, 2022	Oct. 31, 2021
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 3,098,694	$ 3,233,899
Investor commitments to purchase	856,297	772,503
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	669,631	528,127
Investor commitments to purchase	669,631	528,127
Non IRLC [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	2,429,063	2,705,772
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 186,666	$ 244,376