XML 45 R30.htm IDEA: XBRL DOCUMENT v3.21.4
Summary Of Significant Accounting Policies Summary of Significant Accounting Policies (Communities with Indicators of Impairment and Communities with Valuation Adjustments Recorded) (Details)
$ in Thousands
 12 Months Ended
Nov. 30, 2021
USD ($)
community
Nov. 30, 2020
USD ($)
community
Accounting Policies [Abstract]    
# of communities with potential indicator of impairment | community 4 10
Communities with valuation adjustments, # of communities | community 1 16
Communities with valuation adjustments, Fair Value | $ $ 5,267 $ 79,734
Communities with valuation adjustments, Valuation Adjustments | $ $ 11,849 $ 44,811