Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Jan. 31, 2022	Oct. 31, 2021
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 3,510,403	$ 3,233,899
Investor commitments to purchase	758,089	772,503
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	621,537	528,127
Investor commitments to purchase	621,537	528,127
Non Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	2,888,866	2,705,772
Mortgage Receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 136,552	$ 244,376