Fair Value Measurements - Narrative (Details) $ in Millions	May 28, 2023 USD ($) restaurant	Aug. 27, 2023 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Carrying value of long-term debt	$ 884.9	$ 1,477.1
Fair value of long-term debt	857.0	1,450.0
Carrying amount of long-lived assets held and used	3,725.1	$ 3,991.7
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	$ 10.0
Number of underperforming restaurants | restaurant	1
Assets held-for-sale, long-lived, fair value	$ 8.4
Asset impairment	$ 1.6