CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2023	Oct. 01, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (67.9)	$ (0.4)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(0.2)	0.0
Net change in unrealized gain (loss) on available-for-sale securities	1.3	(0.6)
Other comprehensive income (loss), net of tax	1.1	(0.6)
Comprehensive loss, net of tax	$ (66.8)	$ (1.0)