Homebuilding Investments in Unconsolidated Entities (Total Debt Of Unconsolidated Entities) (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Aug. 31, 2019 USD ($) joint_venture	Nov. 30, 2018 USD ($) joint_venture
Schedule of Equity Method Investments [Line Items]
Number of unconsolidated entities debt repayment guarantee | joint_venture	2	4
Homebuilding
Schedule of Equity Method Investments [Line Items]
Non-recourse bank debt and other debt (partner’s share of several recourse)	$ 49,995	$ 48,313
Non-recourse debt with completion guarantees	154,774	239,568
Non-recourse debt without completion guarantees	647,010	861,371
Non-recourse debt to the Company	851,779	1,149,252
The Company’s maximum recourse exposure	10,036	65,707
Debt issuance costs	(9,725)	(12,403)
Total debt (1)	$ 852,090	$ 1,202,556
The Company’s maximum recourse exposure as a % of total JV debt	1.00%	5.00%