Financial Instruments and Fair Value Disclosures - (Fair Value Assets Measured On Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - Level 3 - Homebuilding - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Finished homes and construction in progress, carrying value	$ 68,802	$ 0	$ 141,809	$ 0
Finished homes and construction in progress, fair value	61,119	0	120,404	0
Finished homes and construction in progress, total losses, net	(7,683)	0	(21,405)	0
Land and land under development, carrying value	42,609	0	65,062	6,954
Land and land under development, fair value	9,709	0	21,369	3,001
Land and land under development, total losses, net	$ (32,900)	$ 0	$ (43,693)	$ (3,953)