Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013	Oct. 31, 2012
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 681,415	$ 567,998
Investor commitments to purchase	173,113	191,870
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	45,090	80,697
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	128,023	111,173
Investor commitments to purchase	128,023	111,173
Non IRLC [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 553,392	$ 456,825