Fair Value Disclosures (Assets Measured at Fair Value on Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands		Aug. 31, 2017	Nov. 30, 2016
Level 2
Assets measured at fair value on a nonrecurring basis
Assets, Fair Value Disclosure	[1]	$ 0	$ 3,657
Level 3
Assets measured at fair value on a nonrecurring basis
Assets, Fair Value Disclosure	[1]	$ 32,262	$ 37,329

[1] Amounts represent the aggregate fair value for real estate assets impacted by inventory impairment charges during the applicable period as of the date the fair value measurements were made. The carrying value for these real estate assets may have subsequently increased or decreased from the fair value reflected due to activity that has occurred since the measurement date.