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Summary of Company's Stock-Based Compensation Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 11, 2020
Jul. 13, 2019
Jul. 11, 2020
Jul. 13, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation $ 2,942 $ 1,132 $ 6,836 $ 4,311
Performance Contingent Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation 1,985 508 4,599 2,865
Time-Based Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation 703 354 1,650 802
Deferred Stock        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation $ 254 $ 270 $ 587 $ 644