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Stockholders' Equity (Deficit) - PSU Awards (Detail)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Period in beginning of each year to award performance share unit     90 days
Three-year PSU Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
PSU awards performance period 3 years 3 years 3 years
Three-year PSU Awards | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares to be issued as percentage of target shares under performance incentive plan 0.00%    
Three-year PSU Awards | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares to be issued as percentage of target shares under performance incentive plan 200.00%    
2018 Three-year PSU Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average return on total shareholders 34.00%    
Target level for the determination of performance goals and measures for adjusted EBITDA goal 33.00%    
Compound annual growth rate period 3 years    
2019 Three-year PSU Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average return on total shareholders 34.00%    
Target level for the determination of performance goals and measures for adjusted EBITDA goal 33.00%    
Compound annual growth rate of net trade sales 33.00%    
2020 Three-year PSU Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average return on total shareholders 34.00%    
Compound annual growth rate of net trade sales 33.00%