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Stock-Based Compensation - Additional Information (Detail) - USD ($)
shares in Thousands, $ in Thousands
6 Months Ended
Dec. 27, 2019
Nov. 06, 2019
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocation of recognized period costs, capitalized amount $ 481   $ 241
Employee Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for issuance under stock incentive plan (in shares) 1,800    
Shares available for future grant (in shares) 118    
Purchase price as a percentage of the lesser of the market value of such shares at either the beginning or the end of each nine-month offering period 85.00%    
Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum 10.00%    
2018 Stock Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized for issuance under stock incentive plan (in shares) 2,862    
Shares available for future grant (in shares) 2,681    
2005 Stock Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for future grant (in shares) 710 184  
2005 Stock Incentive Plan | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Term of stock option 7 years