Real Estate Assets - assets held for sale (Details) $ in Thousands	9 Months Ended
	Aug. 31, 2020 USD ($)
Real Estate Assets
Increase in real estate held for sale, net	$ 4,783
Value of real estate assets reclassified as held for sale	6,064
Real estate assets moved out of held for sale	1,084
Value of real estate assets reclassified out of held for sale due to sale	$ 197