Inventory (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2015	Apr. 30, 2014	Apr. 30, 2015	Apr. 30, 2014
Inventory Disclosure [Abstract]
Interest capitalized, beginning of period	$ 364,228	$ 356,618	$ 356,180	$ 343,077
Interest incurred	39,954	42,684	80,458	82,628
Interest expensed to cost of revenues	(29,576)	(29,145)	(57,953)	(54,585)
Write-off against other income	(410)	(722)	(1,738)	(1,039)
Interest capitalized on investments in unconsolidated entities	(2,074)	(2,300)	(4,825)	(4,757)
Previously capitalized interest on investments in unconsolidated entities transferred to inventory	772		772	1,811
Interest capitalized, end of period	$ 372,894	$ 367,135	$ 372,894	$ 367,135