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Note 20 - Investments in Unconsolidated Homebuilding and Land Development Joint Ventures (Details Textual) $ in Thousands	3 Months Ended				12 Months Ended
	Jul. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Jan. 31, 2020 USD ($)	Jul. 31, 2019 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)
Number of Joint Ventures from which Remaining Equity Interest Purchased	1
Payments to Acquire Remaining Equity Interest in Unconsolidated Joint Venture	$ 6,300
Number of Communities Taken Control of from Joint Ventures	4
Number of Active Communities Taken Control of from Joint Ventures	3
Number of Owned Communities Transferred to the Joint Venture		6	8	1
Number of Owned Active Communities Transferred to the Joint Venture		3	4
Number of New Joint Ventures		2
Proceeds from Transfer of Land to Joint Venture		$ 21,200	$ 29,800	$ 15,900
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total					$ 60,897	$ 103,164
Equity Method Investment, Other than Temporary Impairment					0	0
Revenues, Total					$ 2,782,857	$ 2,343,901	$ 2,016,916
Joint Venture Total Debt to Capitalization Ratio					33.00%
Homebuilding and Land Development Joint Ventures [Member]
Equity Method Investment, Number of Unconsolidated Joint Ventures					10	11
Equity Method Investment, Estimated Percentage Share of Net Loss Without Investment Write Off					50.00%
Minimum [Member] | Homebuilding and Land Development Joint Ventures [Member]
Equity Method Investment, Ownership Percentage					20.00%	20.00%
Maximum [Member] | Homebuilding and Land Development Joint Ventures [Member]
Equity Method Investment, Ownership Percentage					50.00%	50.00%
Homebuilding [Member]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total					$ 60,897	$ 103,164
Revenues, Total					2,701,165	2,271,739	1,962,764
Homebuilding [Member] | Management Fees [Member]
Revenues, Total					11,600	16,000	$ 16,900
Corporate Joint Venture [Member]
Advances to Affiliate					$ 2,200	$ 1,100

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Total debt to capitalization ratio for the current period, for of all of the company's joint ventures, including the impact of impairments recorded by the joint ventures.

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Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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