Inventory (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Inventory Disclosure [Abstract]
Interest capitalized, beginning of period	$ 356,618	$ 340,904	$ 343,077	$ 330,581
Interest incurred	42,684	32,303	82,628	64,051
Interest expensed to cost of revenues	(29,145)	(23,016)	(54,585)	(42,990)
Write-off against other income	(722)	(1,133)	(1,039)	(1,221)
Capitalized interest on investments in unconsolidated entities	(2,300)	(1,509)	(4,757)	(2,872)
Previously capitalized interest in unconsolidated entities transferred to inventory	0	0	1,811	0
Interest capitalized, end of period	$ 367,135	$ 347,549	$ 367,135	$ 347,549