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Debt - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2007
Debt Instrument [Line Items]        
Capitalized interest $ 691,000 $ 292,000    
Mortgages and Notes Payable        
Debt Instrument [Line Items]        
Weighted average interest rate 4.50%   4.50%  
Trust Preferred Securities | 6.804% Trust Preferred Securities        
Debt Instrument [Line Items]        
Face amount of debt instrument       $ 200,000,000
Interest rate, effective percentage 1.905%      
Principal amount outstanding $ 129,120,000   $ 129,120,000  
Unamortized debt issuance costs $ 1,600,000   $ 1,625,000  
Trust Preferred Securities | London Interbank Offered Rate (LIBOR) | 6.804% Trust Preferred Securities        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.70%      
Minimum | Mortgages and Notes Payable        
Debt Instrument [Line Items]        
Stated interest rate 3.50%   3.50%  
Maximum | Mortgages and Notes Payable        
Debt Instrument [Line Items]        
Stated interest rate 6.30%   6.30%