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
	Feb. 29, 2020	Feb. 28, 2019
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Finished homes and construction in progress, carrying value	$ 73,006	$ 0
Finished homes and construction in progress, fair value	59,284	0
Finished homes and construction in progress, total losses, net	(13,722)	0
Land and land under development, carrying value	22,453	6,954
Land and land under development, fair value	11,660	3,001
Land and land under development, total losses, net	$ (10,793)	$ (3,953)