Supplemental Financial Statement Information - Cash flow, etc. (Details) - USD ($) $ in Thousands			12 Months Ended
	Oct. 20, 2016	May 27, 2016	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Supplemental Cash Flow Information
Increase (decrease) in value of available-for-sale securities: Investment in Centaur Media Plc			$ (993)	$ 46	$ 285
Increase (decrease) in accounts payable and accrued liabilities related to additions to real estate assets			(32)	(632)
Income Taxes
Proceeds from Income Tax Refunds					61
Interest paid
Interest payments			4,507	4,180	3,860
Interest capitalized included in interest payments			$ 274	$ 777	$ 580
Common Stock
Supplemental Cash Flow Information
Stock repurchased (in shares)	45,000	60,000