Leases - Lease Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 13, 2021	Feb. 15, 2020	Feb. 13, 2021	Feb. 15, 2020	Aug. 29, 2020
Amortization of lease assets			$ 99,900		$ 107,300
Total lease cost	$ 98,861	$ 94,550	192,985	$ 190,390
Depreciation and amortization
Amortization of lease assets	13,066	12,872	22,385	25,528
Interest expense, net
Interest on lease liabilities	713	1,282	1,416	2,667
Selling, general and administrative expenses
Operating lease cost	$ 85,082	$ 80,396	$ 169,184	$ 162,195