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Subsequent Event (Details) - USD ($)
$ in Thousands
May 06, 2020
Apr. 21, 2020
Mar. 31, 2020
Dec. 31, 2019
Subsequent Event [Line Items]        
Note payable     $ 993,752 $ 3,781
Maximum borrowing capacity under revolving credit facility     $ 1,000,000  
A building in Pasadena, California | Subsequent event        
Subsequent Event [Line Items]        
Sales price of real estate   $ 16,100    
Term loan | Subsequent event        
Subsequent Event [Line Items]        
Note payable $ 400,000      
Basis points over LIBOR 1.35%