Commitments and Contingencies (Details) - USD ($) $ in Thousands	Jul. 31, 2018	Oct. 31, 2017
Company's land purchase commitments
Purchase Obligation	$ 2,539,129	$ 2,235,077
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	419,994	481,758
Land Purchase Commitment To Unrelated Party [Member]
Company's land purchase commitments
Purchase Obligation	2,361,064	1,986,276
Land Purchase Commitment To JV [Member]
Company's land purchase commitments
Purchase Obligation	178,065	248,801
Land Parcel Purchase Commitment [Member]
Company's land purchase commitments
Deposits against Aggregate Purchase Commitments	157,488	97,706
Additional cash required to acquire land	2,279,784	2,002,741
Amount of Additional Cash Required to Acquire Land Included in Accrued Expenses	683	4,329
Land Development Joint Venture, Irvine, California [Member] \| Land Parcel Purchase Commitment [Member]
Company's land purchase commitments
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	$ 101,857	$ 134,630

Additional cash required to acquire land.

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Amount of additional cash required to acquire land included in accrued expenses.

+ References

No definition available.

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- Definition

Company purchase commitments.

+ References

No definition available.

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- Definition

The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8,17)
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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

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