Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2013	Oct. 31, 2012
Company's purchase commitments
Aggregate purchase commitments unrelated parties	$ 1,301,987	$ 742,918
Aggregate purchase commitments with related parties	61,738	4,067
Total	1,363,725	746,985
Deposits against aggregate purchase commitments	76,986	42,921
Additional cash required to acquire land	1,286,739	704,064
Total	1,363,725	746,985
Amount of Additional Cash Required to Acquire Land Included in Accrued Expenses	$ 1,439	$ 4,328