Basis of Presentation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	Dec. 16, 2020	Oct. 14, 2020	Nov. 28, 2020	Nov. 30, 2019	Aug. 29, 2020
Subsequent Event [Line Items]
Dividends paid per common share (in dollars per share)			$ 0.12	$ 0.11
Common stock, par value (in dollars per share)		$ 0.50	$ 0.50		$ 0.50
Common stock, shares authorized (in shares)		120,000,000	60,000,000		60,000,000
Common stock, increased shares authorized (in shares)		60,000,000
Deferred FICA liability			$ 1.2
Refundable tax credit			$ 4.0
Subsequent Event
Subsequent Event [Line Items]
Dividends paid per common share (in dollars per share)	$ 0.12