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Net Loss Per Share - Narrative (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Earnings Per Share [Abstract]        
Weighted-average shares common stock outstanding, potentially dilutive securities or unvested restricted stock (in shares) 0      
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average number of shares, vested (in shares) 28,904 98,763    
Unvested restricted shares outstanding (in shares) 23,334   23,334 503,518