Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2013	Oct. 31, 2012
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 899,845	$ 567,998
Investor commitments to purchase	314,651	191,870
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	69,239	80,697
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	245,412	111,173
Investor commitments to purchase	245,412	111,173
Non IRLC [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 654,433	$ 456,825