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Subsequent Events (Details) - USD ($)
Apr. 16, 2020
Mar. 31, 2020
Dec. 31, 2019
Subsequent Event [Line Items]      
Cash and cash equivalents   $ 321,954,000 $ 33,766,000
Subsequent Event | Unsecured Debt | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Debt instrument face amount $ 250,000,000    
Debt instrument, extension, term 1 year    
Debt instrument, principal prepayments, percentage of cash proceeds 100.00%    
Debt instrument, covenant, leverage ratio 4.0    
Cash and cash equivalents $ 250,000,000    
Subsequent Event | Unsecured Debt | Minimum | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Fixed charge coverage ratio 2.5    
Subsequent Event | Unsecured Debt | Maximum | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Fixed charge coverage ratio 4.5    
Subsequent Event | Unsecured Debt | LIBOR | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Debt instrument, basis spread on variable rate 1.00%    
Subsequent Event | Unsecured Debt | LIBOR | Minimum | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Debt instrument, basis spread on variable rate 2.00%    
Subsequent Event | Unsecured Debt | LIBOR | Maximum | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Debt instrument, basis spread on variable rate 2.75%    
Subsequent Event | Unsecured Debt | Base Rate | Minimum | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Debt instrument, basis spread on variable rate 1.00%    
Subsequent Event | Unsecured Debt | Base Rate | Maximum | $250 Million Unsecured Term Loan      
Subsequent Event [Line Items]      
Debt instrument, basis spread on variable rate 1.75%