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Performance-Contingent Restricted Stock Awards (Detail) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Oct. 05, 2019
Oct. 06, 2018
Dec. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends at Vesting $ 1,361 $ 492  
Fiscal Year Vested 2019 | 2017 Award      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends at Vesting 1,219    
Income tax expense related to share-based payments 936    
Fair Value at Vesting $ 18,570    
Fiscal Year Vested 2019 | TSR Modifier | 2017 Award      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares Increase/(Decrease) 205,686    
Fiscal Year Vested 2019 | Return On Invested Capital | 2017 Award      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares Increase/(Decrease) (97,131)    
Fiscal Year Vested 2018 | 2016 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends at Vesting     $ 405
Income tax expense related to share-based payments     (2,130)
Fair Value at Vesting     $ 6,504
Fiscal Year Vested 2018 | TSR Modifier | 2016 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares Increase/(Decrease)     (333,112)
Fiscal Year Vested 2018 | Return On Invested Capital | 2016 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares Increase/(Decrease)     (114,190)