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Equity (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Class of Stock [Line Items]          
Common Stock, Shares Authorized 500,000,000 500,000,000 500,000,000 500,000,000 500,000,000
Proceeds from issuance of common stock     $ 54,649 $ 3,410  
At-the-market offering          
Class of Stock [Line Items]          
Common Stock, Shares Authorized 6,400,000   6,400,000    
Common Stock, Capital Shares Reserved for Future Issuance 4,600,000   4,600,000    
Issuance of common stock (shares) 1,100,000 0 1,800,000 0  
Proceeds from issuance of common stock $ 34,900 $ 0 $ 54,600 $ 0  
Payments of Stock Issuance Costs $ 400 $ 0 $ 700 $ 0