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Fair Value Disclosures (Assets Measured at Fair Value on Nonrecurring Basis) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Feb. 28, 2018
Feb. 28, 2017
Nov. 30, 2017
Assets measured at fair value on a nonrecurring basis      
Impairment of Real Estate $ (4,699) $ (3,217)  
Fair Value, Measurements, Nonrecurring [Member] | Level 3      
Assets measured at fair value on a nonrecurring basis      
Assets, Fair Value Disclosure [1] 12,602   $ 38,357
Inventory Impacted by Pretax Noncash Inventory Impairment Charges, Carrying Value 17,301   58,962
Impairment of Real Estate $ (4,699)   $ (20,605)
[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.