Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 1,930,606	$ 1,943,929
Investor commitments to purchase	774,225	777,463
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	565,634	614,255
Investor commitments to purchase	565,634	614,255
Non IRLC [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	1,364,972	1,329,674
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 208,591	$ 163,208