CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended
	Sep. 28, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (82.4)	$ (67.9)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	0.0	(0.2)
Net change in unrealized gain on available-for-sale securities	2.3	1.3
Other comprehensive income, net of tax	2.3	1.1
Comprehensive loss, net of tax	$ (80.1)	$ (66.8)