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Term Loans (Details) - Term loans - USD ($)
1 Months Ended
Oct. 31, 2018
Jun. 30, 2022
Dec. 31, 2021
Oct. 01, 2018
Debt        
Deferred finance costs balance   $ 344,000 $ 443,000  
$250 million senior unsecured term loan due March 2024        
Debt        
Face amount of loan       $ 250,000,000
Effective yield (as a percent)   3.73%    
$250 million senior unsecured term loan due March 2024 | LIBOR        
Debt        
Basis spread on variable rate (as a percent) 0.85%