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Acquisition of Squirrel Brand L.P. - Additional Information (Detail) - USD ($)
$ in Thousands
 1 Months Ended 6 Months Ended
Nov. 30, 2017
Dec. 28, 2017
Dec. 28, 2017
Acquisition Date [Line Items]      
Weighted-average life     11 years 3 months 19 days
Business acquisition, transaction costs     $ 500
Squirrel Brand [Member]      
Acquisition Date [Line Items]      
Business acquisition, purchase price before working capital adjustment $ 31,500    
Date of acquisition Nov. 30, 2017    
Business acquisition, purchase price $ 33,409    
Purchase price paid in cash 21,909    
Net sales resulting from the acquisition   $ 3,976  
Squirrel Brand [Member] | Customer Relationships [Member]      
Acquisition Date [Line Items]      
Weighted-average life     7 years 6 months
Squirrel Brand [Member] | Brand Names [Member]      
Acquisition Date [Line Items]      
Weighted-average life     13 years 9 months 18 days
Squirrel Brand [Member] | Unsecured Promissory Note [Member]      
Acquisition Date [Line Items]      
Purchase price financed by seller through unsecured promissory note $ 11,500    
Purchase price financed by seller through unsecured promissory note,term 3 years    
Purchase price financed by seller through unsecured promissory note,interest rate 5.50%    
Unsecured promissory note, periodic payment, principal $ 319    
Unsecured promissory note, periodic payment,commencement date 2018-01