Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details 1) $ in Thousands	Oct. 31, 2015 USD ($) joint_ventures	Oct. 31, 2014 USD ($)
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	21
Investments in unconsolidated entities	$ 412,860	$ 447,078
Number of joint venture with funding commitments \| joint_ventures	11
Other Commitment	$ 195,593
Land Development Joint Venture [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	7
Investments in unconsolidated entities	$ 214,060	140,221
Number of joint venture with funding commitments \| joint_ventures	5
Future Financing To Be Obtained By JV	$ 90,000
Home Building Joint Ventures, Total [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	3
Investments in unconsolidated entities	$ 76,120	189,509
Number of joint venture with funding commitments \| joint_ventures	2
Rental Joint Ventures, including Trusts i and II [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	10
Investments in unconsolidated entities	$ 110,454	97,353
Number of joint venture with funding commitments \| joint_ventures	4
Structured Asset Joint Venture [Member]
Schedule of Investments [Line Items]
Number of Joint Ventures \| joint_ventures	1
Investments in unconsolidated entities	$ 12,226	$ 19,995
Number of joint venture with funding commitments \| joint_ventures	0
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Land Development Joint Venture [Member]
Schedule of Investments [Line Items]
Other Commitment	$ 162,022
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	23,012
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Rental Joint Ventures, including Trusts i and II [Member]
Schedule of Investments [Line Items]
Other Commitment	10,559
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Structured Asset Joint Venture [Member]
Schedule of Investments [Line Items]
Other Commitment	$ 0

Future financing expected to be obtained by JV which will reduce our funding commitment to the JV

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Number of unconsolidated joint ventures, in which the Company has an interest.

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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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