Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Jul. 31, 2022	Oct. 31, 2021
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 3,750,983	$ 3,233,899
Investor commitments to purchase	1,091,728	772,503
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	972,783	528,127
Investor commitments to purchase	972,783	528,127
Non Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	2,778,200	2,705,772
Mortgage Receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 118,945	$ 244,376