Long-Term Incentive Plan - Share Based Compensation Award Valuation Assumptions (Details) - $ / shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Absolute TSR Awards    
Share based Compensation Arrangement by Share based Payment Award [Line Items]    
Closing stock price on date of grant $ 4.08  
Beginning average stock price on date of grant [1] $ 4.07  
Expected volatility [2] 69.27%  
Dividend yield [3] 0.00%  
Risk-free rate [4] 0.34%  
Relative TSR Awards    
Share based Compensation Arrangement by Share based Payment Award [Line Items]    
Closing stock price on date of grant $ 4.08 $ 5.65
Beginning average stock price on date of grant [1] $ 4.07 $ 5.89
Expected volatility [2] 69.27% 20.93%
Dividend yield [3] 0.00% 0.00%
Risk-free rate [4] 0.34% 1.34%
[1] Based upon the 30 trading days prior to and including the date of grant.
[2] Based upon the most recent three-year volatility as of the date of grant.
[3] Dividend equivalents are accrued during the performance period and deemed reinvested in additional stock units, which are to be paid out at the end of the performance period to the extent the underlying Performance-based Stock Award is earned. Applying dividend yield assumption of 0.00% in the Monte Carlo simulation is mathematically equivalent to reinvesting dividends on a continuous basis and including the value of the dividends in the final payout.
[4] Based upon the yield of a U.S. Treasury bond with a three-year maturity as of the date of grant.