Inventory (Details 3) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2011	Jul. 31, 2010
Interest incurred, capitalized and expensed
Interest capitalized, beginning of period	$ 288,508	$ 271,509	$ 267,278	$ 259,818
Interest incurred	28,387	28,879	86,820	87,740
Interest expensed to cost of revenues	(20,946)	(23,033)	(56,327)	(55,411)
Interest directly expensed to statement of operations		(5,124)	(1,504)	(18,588)
Write-off against other income	(543)	(977)	(861)	(1,786)
Interest reclassified to property construction and office equipment	0		0	(519)
Interest capitalized, end of period	$ 295,406	$ 271,254	$ 295,406	$ 271,254