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Consolidated Statements of Comprehensive Income/(Loss) - USD ($) $ in Millions	12 Months Ended
	Jun. 24, 2023	Jun. 25, 2022	Jun. 26, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 73.6	$ 257.5	$ 79.6
Other comprehensive loss
Unrealized loss on available-for-sale securities	0.6	(1.8)	0.0
Reclassification Adjustments For Losses Included In Net Income	1.2	0.0	0.0
Other Comprehensive Income (Loss)	1.8	(1.8)
Comprehensive income	$ 75.4	$ 255.7	$ 79.6

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