Fair Value Measurements - Narrative (Details) $ in Millions	12 Months Ended
	May 26, 2024 USD ($) restaurant	Aug. 25, 2024 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Carrying amount of long-lived assets held and used	$ 4,184.3	$ 4,272.8
Significant unobservable inputs (Level 3) | Underperforming Restaurants
Impaired Long-Lived Assets Held and Used [Line Items]
Carrying amount of long-lived assets held and used	$ 4.8
Number of underperforming restaurants | restaurant	3
Fair value of long-lived assets held-for-sale	$ 1.5
Asset impairment charge	3.3
Carrying Value
Impaired Long-Lived Assets Held and Used [Line Items]
Long-term debt	1,370.0	1,390.0
Fair Value
Impaired Long-Lived Assets Held and Used [Line Items]
Long-term debt	$ 1,370.0	$ 1,430.0