Schedule III-Real Estate and Accumulated Depreciation - Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
Cost
Balance at beginning of year	$ 291,852	$ 259,061	$ 247,239
Changes during the year:
Additions to real estate assets	27,559	35,036	15,702
Reclassification to real estate held for sale	(500)	2,047	(2,129)
Writeoff of fully depreciated assets	(286)	(198)	(1,751)
Balance at end of year	318,625	291,852	259,061
Reserve
Balance at beginning of year	(95,112)	(86,801)	(80,784)
Changes during the year:
Additions to reserve charged to costs and expenses	(9,853)	(8,831)	(7,768)
Writeoff of fully depreciated assets	286	198	1,751
Balance at end of year	$ (105,004)	$ (95,112)	$ (86,801)