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Stock-Based and Other Long-Term Incentive Compensation - Summary of Unvested Stock Options (Details) - $ / shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Shares      
Unvested, beginning of period (in shares) 10,433    
Granted (in shares) 5,000 0  
Vested (in shares) (10,433)    
Canceled/Forfeited (in shares) (5,000)    
Unvested, end of period (in shares) 0 10,433  
Weighted Average Grant Date Fair Value      
Unvested, beginning of period (in dollars per share) $ 11.93    
Granted (in dollars per share) 2.07 $ 0 $ 0
Vested (in dollars per share) 11.93    
Canceled/Forfeited (in dollars per share) 2.07    
Unvested, end of period (in dollars per share) $ 0 $ 11.93