Fair Value Disclosures (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014	Nov. 30, 2014
Fair Value Disclosures [Abstract]
Long-lived assets held and used, carrying value	$ 6,600		$ 6,600		$ 68,200
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges	3,173	$ 3,408	3,173	$ 3,408	37,600
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	$ 3,400		$ 3,400		$ 30,600