Inventory (Details Textual) (USD $)	3 Months Ended
	Jan. 31, 2012 Contracts	Jan. 31, 2011
Inventory (Textual) [Abstract]
Reclassification of inventory to property, construction and office equipment	$ 0	$ 20,005,000
Aggregate purchase price of lands	437,900,000
Deposits for purchase of lands with VIE entities	25,500,000
Number of VIE Land Purchase Contracts	57
Reduction in Capitalized Interest	$ 53,900,000	$ 53,800,000