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Equity-based Compensation - OpCo Unit Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Weighted Average Grant Date Fair Value    
Effect of Reorganization Transactions and IPO (in dollars per share) $ 21.00  
OpCo Units    
Shares    
Beginning balance (in shares) 228,819 441,681
Effect of Reorganization Transactions and IPO (in shares) (6,909) 0
Vested (in shares) (162,218) (118,867)
Forfeited (in shares) (59,692) (93,995)
Ending balance (in shares) 0 228,819
Weighted Average Grant Date Fair Value    
Beginning balance (in dollars per share) $ 1.72  
Effect of Reorganization Transactions and IPO (in dollars per share) 10.48  
Vested (in dollars per share) 1.72  
Forfeited (in dollars per share) 0.68  
Ending balance (in dollars per share) $ 0 $ 1.72