CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 28, 2024	Dec. 30, 2023
Income Statement [Abstract]
Net revenue	$ 402.2	$ 366.8	$ 739.1	$ 684.4
Cost of sales	281.2	281.3	517.7	504.2
Amortization of acquired developed intangibles	21.4	21.5	43.9	39.5
Gross profit	99.6	64.0	177.5	140.7
Operating expenses:
Research and development	74.2	78.3	148.5	151.8
Selling, general and administrative	76.3	85.1	152.6	158.1
Restructuring and related charges	0.7	5.8	10.4	16.8
Total operating expenses	151.2	169.2	311.5	326.7
Loss from operations	(51.6)	(105.2)	(134.0)	(186.0)
Interest expense	(5.6)	(9.7)	(11.1)	(19.4)
Other income, net	14.9	13.4	23.6	34.6
Loss before income taxes	(42.3)	(101.5)	(121.5)	(170.8)
Income tax provision (benefit)	18.6	(2.4)	21.8	(3.8)
Net loss	$ (60.9)	$ (99.1)	$ (143.3)	$ (167.0)
Net loss per share:
Basic (in usd per share)	$ (0.88)	$ (1.47)	$ (2.09)	$ (2.49)
Diluted (in usd per share)	$ (0.88)	$ (1.47)	$ (2.09)	$ (2.49)
Shares used to compute net loss per share:
Basic (in shares)	68.9	67.2	68.6	67.0
Diluted (in shares)	68.9	67.2	68.6	67.0