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Shareholders' Equity - Narrative (Details)
9 Months Ended
Sep. 15, 2020
$ / shares
shares
Sep. 30, 2020
vote
shares
Dec. 31, 2019
shares
Class of Stock [Line Items]      
Treasury stock (in shares)   436,630 0
Class A Common Stock      
Class of Stock [Line Items]      
Common stock outstanding (in shares)   43,315,863 34,040,934
Number of votes per share (vote) | vote   1  
Class A Common Stock | September Offering      
Class of Stock [Line Items]      
Purchase of treasury stock (in shares) 436,630    
Common shares acquired (in dollars per share) | $ / shares $ 8.08    
Treasury stock (in shares)   436,630  
Class B Common Stock      
Class of Stock [Line Items]      
Common stock outstanding (in shares)   13,167,687 22,847,045
Number of votes per share (vote) | vote   1  
Performance-Based Restricted Stock Units      
Class of Stock [Line Items]      
Shares granted during period (in shares)   1,187,811