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Long-Term Debt - Notes Payable Landwell - Additional Information (Detail) - LandWell - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Western Alliance Business Trust      
Debt Instrument [Line Items]      
Interest rate terms The agreement requires semi-annual payments of principal and interest on April 15 and October 15 aggregating $1.3 million annually beginning on April 15, 2020 through the maturity date in April 2036 and is payable from the tax increment reimbursement funds received under the OPA.    
Frequency of debt instrument payment semi-annual    
Long-term promissory note fixed interest rate 4.76%    
Principal amount of loan agreement   $ 15,000,000.0  
Periodic principal and interest payments $ 1,300,000    
Loans maturity period 2036-04    
Note payable to the City of Henderson      
Debt Instrument [Line Items]      
Debt instrument     $ 3,900,000
Periodic principal payments $ 250,000    
Interest rate terms The loan bore interest at a 3% fixed rate.    
Frequency of debt instrument payment semi-annual    
Long-term promissory note fixed interest rate 3.00%    
Payment of notes payable using receipts from specified revenues sources   $ 400,000