Goodwill and Intangibles - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Sep. 27, 2014	Feb. 13, 2016	Feb. 14, 2015	Feb. 13, 2016	Feb. 14, 2015	Aug. 29, 2015
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Amortization expense of intangible assets		$ 2,000	$ 2,100	$ 4,000	$ 4,100
Purchase of intangibles				10,000	10,000
Acquisition of outstanding stock					75,744
Goodwill		$ 391,887		391,887		$ 391,887
Interamerican Motor Corporation [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Acquisition of outstanding stock	$ 75,744
Goodwill	24,100
Purchase price allocation, intangible assets	$ 3,600
Customer Relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Purchase of intangibles				$ 10,000	$ 10,000