Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014
Company's land purchase commitments
Purchase Obligation	$ 1,061,548	$ 1,227,914
Land Purchase Commitment To Unrelated Party [Member]
Company's land purchase commitments
Purchase Obligation	882,723	1,043,654
Land Purchase Commitment To JV [Member]
Company's land purchase commitments
Purchase Obligation	178,825	184,260
Land Parcel Purchase Commitment [Member]
Company's land purchase commitments
Deposits against aggregate purchase commitments	71,126	103,422
Additional cash required to acquire land	990,422	1,124,492
Amount of Additional Cash Required to Acquire Land Included in Accrued Expenses	$ 1,120	$ 764