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Term Loans - Narrative (Details) - Term Loans - USD ($)
1 Months Ended
Oct. 31, 2018
Jun. 30, 2015
Mar. 31, 2020
Dec. 31, 2019
Debt        
Deferred finance costs balance     $ 849,000 $ 956,000
$250 million senior unsecured term loan due March 2024        
Debt        
Face amount of loan $ 250,000,000.0      
Effective yield (as a percent) 3.89%      
Deferred financing costs incurred $ 1,100,000      
$250 million senior unsecured term loan due March 2024 | LIBOR        
Debt        
Basis spread on variable rate (as a percent) 0.85%      
$250 million senior unsecured term loan due June 2020        
Debt        
Face amount of loan   $ 250,000,000.0    
Effective yield (as a percent)   2.62%    
Deferred financing costs incurred   $ 1,200,000    
$250 million senior unsecured term loan due June 2020 | LIBOR        
Debt        
Basis spread on variable rate (as a percent)   0.90%