Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details 1) $ in Thousands	Oct. 31, 2016 USD ($) joint_ventures	Oct. 31, 2015 USD ($)
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	26
Investments in unconsolidated entities \| $	$ 496,411	$ 412,860
Number of joint venture with funding commitments \| joint_ventures	12
Other Commitment \| $	$ 273,812
Land Development Joint Ventures [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	7
Investments in unconsolidated entities \| $	$ 223,483	214,060
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	3
Investments in unconsolidated entities \| $	$ 98,754	76,120
Number of joint venture with funding commitments \| joint_ventures	2
Rental Property Joint Ventures, including Trust I [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	12
Investments in unconsolidated entities \| $	$ 153,640	110,454
Number of joint venture with funding commitments \| joint_ventures	4
Gibraltar Joint Ventures [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	4
Investments in unconsolidated entities \| $	$ 20,534	$ 12,226
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 \| $	$ 244,287
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 \| $	9,902
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 \| $	9,623
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Gibraltar Joint Ventures [Member]
Schedule of Investments [Line Items]
Other Commitment \| $	$ 10,000

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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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