Inventory (Details Textual) - Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] $ in Thousands	Jul. 31, 2016 USD ($)	Oct. 31, 2015 USD ($)
Variable Interest Entity [Line Items]
Number of VIE Land Purchase Contracts (in ones)	80	61
Aggregate purchase price of VIE lands	$ 994,100	$ 663,600
Deposits for purchase of lands with VIE entities	$ 43,700	$ 45,000