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Related Party Transaction - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 28, 2019
Mar. 29, 2018
Dec. 28, 2017
Mar. 28, 2019
Mar. 29, 2018
Related Party Transaction [Line Items]          
Interest paid $ 278 $ 340   $ 880 $ 779
Promissory Note [Member]          
Related Party Transaction [Line Items]          
Purchase price financed by seller through unsecured debt     $ 11,500    
Interest rate 5.50%     5.50%  
Outstanding balance $ 6,389     $ 6,389  
Interest paid $ 96     $ 329