Schedule III-Real Estate and Accumulated Depreciation - Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Cost
Balance at beginning of year	$ 259,061	$ 247,239	$ 209,284
Changes during the year:
Additions to real estate assets	35,036	15,702	30,556
Reclassification to real estate held for sale	(2,047)	2,129	7,916
Writeoff of fully depreciated assets	(198)	(1,751)	(517)
Balance at end of year	291,852	259,061	247,239
Reserve
Balance at beginning of year	(86,801)	(80,784)	(74,762)
Changes during the year:
Additions to reserve charged to costs and expenses	(8,831)	(7,768)	(6,539)
Writeoff of fully depreciated assets	198	1,751	517
Balance at end of year	$ (95,112)	$ (86,801)	$ (80,784)