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Stock-Based Compensation - Schedule of Fair Value of Common Stock used for Determining Fair Value of PSUs (Details) - Phantom Stock Plan - Phantom Share Units (PSUs)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rate   1.60%
Risk-free interest rate, minimum 0.10%  
Risk-free interest rate, maximum 0.20%  
Expected term (years)   3 years
Expected volatility   60.00%
Expected volatility, minimum 55.00%  
Expected volatility, maximum 70.00%  
Dividends 0.00% 0.00%
Marketability discount   23.00%
Minimum [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Expected term (years) 1 month 9 days  
Marketability discount 4.00%  
Maximum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Expected term (years) 3 months  
Marketability discount 8.00%