Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Jan. 31, 2016	Oct. 31, 2015
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 1,398,356	$ 1,257,427
Investor commitments to purchase	439,144	432,043
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	371,770	316,184
Investor commitments to purchase	371,770	316,184
Non Interest Rate Lock Commitments [Member] [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	1,026,586	941,243
Mortgage Receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 67,374	$ 115,859