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Note 18 - Investments in Unconsolidated Homebuilding and Land Development Joint Ventures (Details Textual) $ in Thousands	3 Months Ended				9 Months Ended
	Jul. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Jul. 31, 2020 USD ($)	Jan. 31, 2020 USD ($)	Jul. 31, 2021 USD ($)	Jul. 31, 2020 USD ($)	Oct. 31, 2020 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
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
Equity Method Investment, Other than Temporary Impairment					$ 0	$ 0
Revenues, Total	$ 690,683		$ 628,136		$ 1,968,509	$ 1,660,543
Joint Venture Total Debt to Capitalization Ratio	32.00%				32.00%
Homebuilding and Land Development Joint Ventures [Member]
Equity Method Investment, Number of Unconsolidated Joint Ventures					12	12
Equity Method Investment, Estimated Percentage Share of Net Loss Without Investment Write Off	50.00%				50.00%
Minimum [Member] | Homebuilding and Land Development Joint Ventures [Member]
Equity Method Investment, Ownership Percentage	20.00%		20.00%		20.00%	20.00%
Maximum [Member] | Homebuilding and Land Development Joint Ventures [Member]
Equity Method Investment, Ownership Percentage	50.00%		50.00%		50.00%	50.00%
Homebuilding [Member]
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total	$ 68,900				$ 68,900		$ 103,164
Revenues, Total	670,838		$ 606,841		1,907,439	$ 1,610,873
Homebuilding [Member] | Management Fees [Member]
Revenues, Total	3,200		$ 4,700		8,500	$ 12,500
Corporate Joint Venture [Member]
Advances to Affiliate	$ 2,300				$ 2,300		$ 1,100

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