Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 25, 2022	Feb. 26, 2021	Feb. 28, 2020	Feb. 22, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (50.6)	$ (40.0)	$ (69.3)	$ (47.3)
Other comprehensive income (loss) before reclassifications	(11.3)	28.7
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.7	0.6
Total other comprehensive income (loss), net	(10.6)	29.3	(22.0)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(6.7)	(7.6)	$ (8.6)
Other comprehensive income (loss) before reclassifications	0.0	0.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.9	1.0
Total other comprehensive income (loss), net	$ 0.9	$ 1.0