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Performance-Contingent Restricted Stock Awards (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends at vesting $ 109 $ 1,361 $ 498
Fiscal Year Vested 2019 | 2017 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends at vesting 1,219    
Income tax benefit/(expense) related to share-based payments 936    
Fair value at vesting 18,570    
Fiscal Year Vested 2018 | 2016 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Dividends at vesting 405    
Income tax benefit/(expense) related to share-based payments (2,130)    
Fair value at vesting $ 6,504    
TSR Modifier | Fiscal Year Vested 2019 | 2017 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares increase/(decrease) 205,686    
TSR Modifier | Fiscal Year Vested 2018 | 2016 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares increase/(decrease) (333,112)    
Return On Invested Capital | Fiscal Year Vested 2019 | 2017 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares increase/(decrease) (97,131)    
Return On Invested Capital | Fiscal Year Vested 2018 | 2016 Award Granted      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares increase/(decrease) (114,190)