Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Oct. 31, 2012
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 817,247	$ 567,998
Investor commitments to purchase	228,790	191,870
Mortgage loans receivable [Member]
Company's mortgage commitments
Investor commitments to purchase	61,202	80,697
Interest Rate Lock Commitments [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	167,588	111,173
Investor commitments to purchase	167,588	111,173
Non IRLC [Member]
Company's mortgage commitments
Aggregate mortgage loan commitments	$ 649,659	$ 456,825