Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Jul. 31, 2015	Oct. 31, 2014
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 1,215,541	$ 901,005
Investor commitments to purchase	509,769	284,865
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	389,441	191,604
Investor commitments to purchase	389,441	191,604
Non Interest Rate Lock Commitments [Member] [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	826,100	709,401
Mortgage Receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 120,328	$ 93,261