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Inventory Impairments and Land Option Contract Abandonments (Narratives) (Details)
3 Months Ended
Feb. 28, 2022
USD ($)
lot
property
Feb. 28, 2021
USD ($)
delivery
Nov. 30, 2021
USD ($)
property
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)      
Number of land parcels or communities evaluated for recoverability | property 1   0
Carrying value of communities or land parcels evaluated for impairment $ 6,600,000    
Inventory impairment charges 0 $ 3,600,000  
Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges $ 90,600,000   $ 87,700,000
Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges 7   11
Minimum [Member]      
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)      
Average Selling price [1]   $ 471,000  
Deliveries per month | delivery [1]   5  
Discount Rate, Percent [1]   19.00%  
Maximum [Member]      
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)      
Deliveries per month | delivery   5  
Land Option Contract Abandonment [Member]      
Fair Value Inputs, Assets, Quantitative Information [Line Items] (Deprecated 2018-01-31)      
Land option contract abandonment charges $ 200,000 $ 400,000  
[1] The ranges of inputs used in each period primarily reflect differences between the housing markets where each impacted community is located, rather than fluctuations in prevailing market conditions.