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Schedule of Deferred Compensation Amount Outstanding (Detail) - USD ($)
$ in Thousands
Jan. 02, 2021
Dec. 28, 2019
Debt Disclosure [Abstract]    
Deferral elections outstanding $ 18,308 $ 17,308
Current portion of deferral elections (1,634) (1,750)
Long-term portion of deferral elections $ 16,674 $ 15,558