Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Apr. 30, 2022	Oct. 31, 2021
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 3,947,938	$ 3,233,899
Investor commitments to purchase	926,043	772,503
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	779,144	528,127
Investor commitments to purchase	779,144	528,127
Non Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	3,168,794	2,705,772
Mortgage Receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 146,899	$ 244,376