Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Performance Stock Units - Additional Information (Detail)

v3.19.2
Stock-Based Compensation - Performance Stock Units - Additional Information (Detail) - $ / shares
Jun. 28, 2019
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance stock, shares granted   2,006,505
Performance Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 3 years  
Performance stock settled in restricted stock, restriction period 2 years  
Increase in common stock starting price $ 12.48  
Performance Stock Units [Member] | Tranche One [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting percentage 50.00%  
Performance Stock Units [Member] | Tranche Two [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting percentage 100.00%  
Performance Stock Units [Member] | Tranche Three [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting percentage 120.00%  
Performance Stock Units [Member] | Three Executive Officers [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance stock, shares granted 311,667