Commitments and Contingencies (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Oct. 31, 2019
Company's land purchase commitments
Purchase Obligation	$ 2,640,978	$ 2,360,726
Land Purchase Commitment To Unrelated Party [Member]
Company's land purchase commitments
Purchase Obligation	2,635,746	2,349,900
Land Purchase Commitment To JV [Member]
Company's land purchase commitments
Purchase Obligation	5,232	10,826
Land Parcel Purchase Commitment [Member]
Company's land purchase commitments
Deposits against Aggregate Purchase Commitments	185,050	168,778
Additional cash required to acquire land	2,455,928	2,191,948
Amount of Additional Cash Required to Acquire Land Included in Accrued Expenses	$ 16,044	$ 14,620