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Goodwill and Intangibles - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 29, 2020
Aug. 31, 2019
Goodwill [Line Items]    
Goodwill $ 302,645 $ 302,645
Amortization expense of intangible assets 4,200 4,200
2021 1,400,000  
Thereafter 0  
Auto Parts Locations [Member]    
Goodwill [Line Items]    
Goodwill $ 302,600 $ 302,600