Fair Value Disclosures (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016	Nov. 30, 2016
Fair Value Disclosures [Abstract]
Long-lived assets held and used, carrying value	$ 46,900		$ 46,900		$ 89,100
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Real Estate	7,094	$ 2,579	14,613	$ 13,855	49,600
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 32,300		$ 32,300		$ 39,500