Stock Repurchase Program - Share Repurchase Activity (Detail) - USD ($) $ in Thousands	2 Months Ended	12 Months Ended
	Oct. 18, 2021	Aug. 28, 2021	Aug. 29, 2020	Aug. 31, 2019	Oct. 05, 2021	Mar. 23, 2021	Dec. 15, 2020	Dec. 14, 2020
Equity, Class of Treasury Stock [Line Items]
Amount		$ 3,378,321	$ 930,903	$ 2,004,896
Shares		2,592,000	826,000	2,182,000
Subsequent Events [Member]
Equity, Class of Treasury Stock [Line Items]
Amount	$ 362,800
Shares	220,022
Remaining value authorized for share repurchases	$ 1,555,000
Stock Repurchase Program 1998
Equity, Class of Treasury Stock [Line Items]
Stock repurchase authorized						$ 26,150,000	$ 24,650,000	$ 23,150,000
Remaining value authorized for share repurchases		$ 417,600
Stock Repurchase Program 1998 | Subsequent Events [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase authorized					$ 27,650,000
Common Stock | Subsequent Events [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase authorized					$ 1,500,000