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Stock Based-Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 9 Months Ended
May 21, 2020
Feb. 14, 2020
Oct. 03, 2020
Sep. 28, 2019
Jul. 04, 2020
Oct. 03, 2020
Sep. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of stock options exercised     0     274,353  
Weighted average exercise price of options exercised           $ 2.00  
Compensation expense for stock based awards     $ 1,500 $ 1,000   $ 4,369 $ 3,246
Selling, General and Administrative Expenses [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Compensation expense for stock based awards     1,300 $ 800   3,900 $ 2,700
Executives and Non-Executive Employees [Member] | Fixed Criteria [Member] | 2020 Long-Term Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awards   152,515          
Options vesting period   3 years          
Restricted Stock Award [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awards 42,360            
Fair value of common stock $ 13.41            
Total unrecognized compensation     $ 7,800     $ 7,800  
Weighted-average period         1 year 8 months 12 days    
Restricted Stock Award [Member] | 2019 Long-Term Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awards           0  
Restricted Stock Award [Member] | Executives and Non-Executive Employees [Member] | 2020 Long-Term Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awards   305,030          
Fair value of common stock   $ 16.56          
Restricted Stock Award [Member] | Executives and Non-Executive Employees [Member] | 2019 Long-Term Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Percentage of shares issued based on target performance           0.00%  
Restricted Stock Award [Member] | Executives and Non-Executive Employees [Member] | 2019 Long-Term Incentive Plan [Member] | Minimum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Target performance percentage not achieved           80.00%  
Company Performance Criteria [Member] | Executives and Non-Executive Employees [Member] | 2020 Long-Term Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awards   152,515          
Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance criteria defined in share awards           The performance percentages, ranging from less than 80% to greater than 120%, provide for the awarding of shares ranging from no shares to 150% of the target number of shares.  
Restricted Stock [Member] | Executives and Non-Executive Employees [Member] | 2020 Long-Term Incentive Plan [Member] | Minimum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance percentage   80.00%          
Percentage of shares issuable based on target performance   0.00%          
Restricted Stock [Member] | Executives and Non-Executive Employees [Member] | 2020 Long-Term Incentive Plan [Member] | Maximum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance percentage   120.00%          
Percentage of shares issuable based on target performance   150.00%