Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details 1) $ in Thousands	Oct. 31, 2017 USD ($) joint_ventures	Oct. 31, 2016 USD ($)
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	30
Investments in unconsolidated entities \| $	$ 481,758	$ 496,411
Number of joint venture with funding commitments \| joint_ventures	8
Other Commitment \| $	$ 52,492
Land Development Joint Ventures [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	7
Investments in unconsolidated entities \| $	$ 236,062	223,483
Number of joint venture with funding commitments \| joint_ventures	5
Home Building Joint Ventures, Total [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	4
Investments in unconsolidated entities \| $	$ 102,191	98,754
Number of joint venture with funding commitments \| joint_ventures	1
Rental Property Joint Ventures, including Trust I [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	14
Investments in unconsolidated entities \| $	$ 127,439	153,640
Number of joint venture with funding commitments \| joint_ventures	1
Gibraltar Joint Ventures [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	5
Investments in unconsolidated entities \| $	$ 16,066	$ 20,534
Number of joint venture with funding commitments \| joint_ventures	1
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Land Development Joint Ventures [Member]
Schedule of Investments [Line Items]
Other Commitment \| $	$ 33,689
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Home Building Joint Ventures, Total [Member]
Schedule of Investments [Line Items]
Other Commitment \| $	8,300
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Rental Property Joint Ventures, including Trust I [Member]
Schedule of Investments [Line Items]
Other Commitment \| $	882
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Gibraltar Joint Ventures [Member]
Schedule of Investments [Line Items]
Other Commitment \| $	$ 9,621

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- Definition

Number of joint venture with funding commitments

+ References

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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 other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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