Quarterly report pursuant to Section 13 or 15(d)

Mandatorily-Redeemable Preferred Stock (Details)

v3.20.2
Mandatorily-Redeemable Preferred Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 9 Months Ended
Aug. 31, 2016
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Subsidiary, Sale of Stock [Line Items]          
Common stock, shares issued (in shares)   22,204,906   20,936,658  
Proceeds from issuance of preferred and common equity   $ 55,231 $ 86,070    
Offering costs   $ 3,636 $ 6,551    
Series A Preferred Stock          
Subsidiary, Sale of Stock [Line Items]          
Dividend rate (as percent) 6.375%        
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001   $ 0.001  
Average sales price price (in dollars per share) $ 25.00        
Proceeds from issuance of preferred and common equity $ 27,600        
Redemption price (in dollars per share)         $ 25.00
Offering costs $ 1,200        
Series A Preferred Stock | Preferred Stock          
Subsidiary, Sale of Stock [Line Items]          
Common stock, shares issued (in shares) 1,150,000        
Proceeds from issuance of preferred stock $ 28,800 $ 28,800