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Long-Term Incentive Plans - Summary of Fair Value Assumptions (Detail) - PSUs [Member] - $ / shares
3 Months Ended
Jan. 01, 2020
Mar. 31, 2020
Share Price Target 12.50 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share price targets   $ 12.50
Risk-free interest rate 1.61%  
Dividend yield   12.10%
Expected volatility 60.00%  
Calculated fair value per PSU $ 3.66  
Share Price Target 15.00 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share price targets   $ 15.00
Risk-free interest rate 1.61%  
Dividend yield   12.10%
Expected volatility 60.00%  
Calculated fair value per PSU $ 2.98  
Share Price Target 17.50 [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Share price targets   $ 17.50
Risk-free interest rate 1.61%  
Dividend yield   12.10%
Expected volatility 60.00%  
Calculated fair value per PSU $ 2.46