Inventory (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
Inventory Disclosure [Abstract]
Interest capitalized, beginning of period	$ 322,516	$ 285,508	$ 298,757	$ 267,278
Interest incurred	32,560	28,387	93,027	86,820
Interest expensed to cost of revenues	(25,834)	(20,946)	(59,823)	(56,327)
Interest directly expensed to statement of operations	0	0	0	(1,504)
Write-off against other income	(82)	(543)	(1,664)	(861)
Interest reclassified to property construction and office equipment	0	0	0	(3,000)
capitalized interest on investments in unconsolidated entities	(1,123)	0	(2,260)	0
Interest capitalized, end of period	$ 328,037	$ 292,406	$ 328,037	$ 292,406