Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Oct. 31, 2015	Oct. 31, 2014
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 1,257,427	$ 901,005
Investor commitments to purchase	432,043	284,865
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	316,184	191,604
Investor commitments to purchase	316,184	191,604
Non IRLC [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	941,243	709,401
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 115,859	$ 93,261