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Restructuring Activities - Additional Information (Detail)
$ in Thousands
3 Months Ended 4 Months Ended 6 Months Ended
Jul. 02, 2018
Segment
May 03, 2017
BusinessUnit
Jul. 11, 2020
USD ($)
Bakery
Apr. 18, 2020
Bakery
Jul. 11, 2020
USD ($)
Jul. 13, 2019
USD ($)
Restructuring Cost And Reserve [Line Items]            
Number of closed bakeries reclassified as held for sale | Bakery     3 2    
Impairment charges assets held for sale     $ 4,200   $ 9,270 $ 1,781
Impairment of Trademark            
Restructuring Cost And Reserve [Line Items]            
Impairment charge     4,636   $ 4,636  
Bakeries            
Restructuring Cost And Reserve [Line Items]            
Impairment charges assets held for sale     4,600      
Develop Leading Capabilities            
Restructuring Cost And Reserve [Line Items]            
Number of operating segments | Segment 1          
Employee Severance | Voluntary Employee Separation Incentive Plan            
Restructuring Cost And Reserve [Line Items]            
Employee termination benefits     $ 1,300      
Launch of Project Centennial            
Restructuring Cost And Reserve [Line Items]            
Restructuring activities, expected completion year         2021  
Launch of Project Centennial | Develop Leading Capabilities            
Restructuring Cost And Reserve [Line Items]            
Number of new organizational structure business units established | BusinessUnit   2