Commitments and Contingencies (Details 1) - Loan Origination Commitments [Member] - USD ($) $ in Thousands	Apr. 30, 2016	Oct. 31, 2015
Company's mortgage commitments
Unused Commitments to Extend Credit	$ 1,640,417	$ 1,257,427
Investor commitments to purchase	505,770	432,043
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	388,074	316,184
Investor commitments to purchase	388,074	316,184
Non Interest Rate Lock Commitments [Member] [Member]
Company's mortgage commitments
Unused Commitments to Extend Credit	1,252,343	941,243
Mortgage Receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	$ 117,696	$ 115,859