Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Oct. 31, 2016	Oct. 31, 2015
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 1,350,508	$ 1,257,427
Investor commitments to purchase	487,045	432,043
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	255,647	316,184
Investor commitments to purchase	255,647	316,184
Non IRLC [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	1,094,861	941,243
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 231,398	$ 115,859