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Summary of Significant Accounting Policies and Basis of Presentation - Additional Information (Detail) - USD ($)
 3 Months Ended 4 Months Ended 12 Months Ended
Dec. 30, 2018
Dec. 30, 2017
Oct. 07, 2017
Jul. 15, 2017
Dec. 31, 2016
Oct. 08, 2016
Jul. 16, 2016
Apr. 22, 2017
Apr. 23, 2016
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Significant Accounting Policies And Basis Of Presentation [Line Items]                        
Revenue recognition performance obligation on international shipments                   $ 0    
Allowance for doubtful accounts   $ 2,000,000               4,300,000 $ 2,000,000  
Bad debt expenses                   $ 3,400,000 $ 1,500,000 $ 1,400,000
Inventories valued on LIFO method   86.90%               88.90% 86.90%  
Under Value of carrying value of inventories than its replacement value   $ 50,400,000               $ 55,100,000 $ 50,400,000  
Effect on income due to change in LIFO valuation on liquidation                   1,100,000 200,000 $ 200,000
Capitalized computer software   30,700,000               33,500,000 30,700,000  
Workers' compensation liability                   500,000    
Health care insurance liability                   500,000    
Automobile insurance liability                   1,000,000    
Current portion of self insurance liability   8,700,000               8,600,000 8,700,000  
Long term portion of self insurance liability   $ 6,500,000               $ 5,700,000 $ 6,500,000  
Weighted average shares not included in EPS calculations                   0 75,159 0
Issuance of preferred stock   10,000,000               10,000,000 10,000,000  
Preferred stock, shares outstanding   0               0 0  
Advertising expenses                   $ 40,900,000 $ 43,400,000 $ 46,600,000
Retained earnings   $ 239,993,000               247,642,000 239,993,000  
Accounting Standards Update 2014-09 [Member]                        
Significant Accounting Policies And Basis Of Presentation [Line Items]                        
Decrease in net sales   38,725,000 $ 38,246,000 $ 38,510,000 $ 43,168,000 $ 42,382,000 $ 38,594,000 $ 48,802,000 $ 49,372,000 177,100,000 164,283,000 173,516,000
Decrease in cost of sales   $ 38,725,000 $ 38,246,000 $ 38,510,000 $ 43,168,000 $ 42,382,000 $ 38,594,000 $ 48,802,000 $ 49,372,000 $ 177,100,000 $ 164,283,000 $ 173,516,000
Accounting Standards Update 2016-02 [Member] | Subsequent Event [Member]                        
Significant Accounting Policies And Basis Of Presentation [Line Items]                        
Additional lease assets $ 240,000,000                      
Additional lease liabilities 290,000,000                      
Retained earnings 27,000,000                      
Deferred income tax $ 9,000,000                      
Minimum [Member]                        
Significant Accounting Policies And Basis Of Presentation [Line Items]                        
Percentage of revenues recognized at a point in time                   99.00%    
Reserved expenses paid over remaining lease term                   1 year    
Maximum [Member]                        
Significant Accounting Policies And Basis Of Presentation [Line Items]                        
Reserved expenses paid over remaining lease term                   10 years