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Fair Value Disclosures - Nonrecurring Fair Value Measurements (Details)
$ in Millions
3 Months Ended
Feb. 29, 2020
USD ($)
Feb. 28, 2021
ft²
site
taxLot
JETX Energy    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impairment of oil and gas properties $ 33.0  
JETX Energy | Oil and gas properties    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Estimated fair value of proven oil and gas properties $ 9.6  
JETX Energy | Discount Rate | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value measurement input 0.100  
HomeFed | RedSky JZ Fulton Mall    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of separate tax lots | taxLot   14
Number of premier development sites | site   2
Area of property (up to) | ft²   540,000
Equity method investment, other than temporary impairment $ 55.6  
HomeFed | RedSky JZ Fulton Mall | Development site    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity method investment, ownership percentage   49.00%