Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details 1) $ in Thousands	Oct. 31, 2020 USD ($) joint_ventures	Oct. 31, 2019 USD ($)
Schedule of Investments [Line Items]
Investments in unconsolidated entities \| $	$ 430,701	$ 366,252
Other Commitment \| $	$ 74,989
Number of Joint Ventures \| joint_ventures	46
Number of joint venture with funding commitments \| joint_ventures	14
Land Development Joint Ventures [Member]
Schedule of Investments [Line Items]
Investments in unconsolidated entities \| $	$ 127,690	110,306
Number of Joint Ventures \| joint_ventures	9
Number of joint venture with funding commitments \| joint_ventures	3
Home Building Joint Ventures, Total [Member]
Schedule of Investments [Line Items]
Investments in unconsolidated entities \| $	$ 33,819	60,512
Number of Joint Ventures \| joint_ventures	4
Number of joint venture with funding commitments \| joint_ventures	0
Rental Joint Ventures, including Trusts i and II [Member]
Schedule of Investments [Line Items]
Investments in unconsolidated entities \| $	$ 247,049	174,292
Number of Joint Ventures \| joint_ventures	26
Number of joint venture with funding commitments \| joint_ventures	10
Gibraltar Joint Ventures [Member]
Schedule of Investments [Line Items]
Investments in unconsolidated entities \| $	$ 22,143	$ 21,142
Number of Joint Ventures \| joint_ventures	7
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 \| $	$ 33,045
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 \| $	0
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 \| $	24,343
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] \| Gibraltar Joint Ventures [Member]
Schedule of Investments [Line Items]
Other Commitment \| $	$ 17,601

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

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- Definition

Number of joint venture with funding commitments

+ References

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Amount of investment in equity method investee and investment in and advance to affiliate.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120391452&loc=d3e13212-122682

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- Definition

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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