Schedule III-Real Estate and Accumulated Depreciation - Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2018
Cost
Balance at beginning of year	$ 343,649	$ 318,625	$ 291,852
Changes during the year:
Additions to real estate assets	23,535	39,735	27,559
Reclassification to real estate held for sale	1,891	(11,307)	(500)
Impairment loss	(2,671)	(3,100)
Writeoff of fully depreciated assets	(253)	(304)	(286)
Balance at end of year	366,151	343,649	318,625
Reserve
Balance at beginning of year	(105,035)	(105,004)	(95,112)
Changes during the year:
Additions to reserve charged to costs and expenses	(11,889)	(10,416)	(9,853)
Reclassification to real estate held for sale	(7,191)	10,081	(325)
Writeoff of fully depreciated assets	253	304	286
Impairment loss	586
Balance at end of year	$ (123,276)	$ (105,035)	$ (105,004)