UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 25, 2022	Dec. 26, 2021	Dec. 25, 2022	Dec. 26, 2021
Income Statement [Abstract]
Revenue, net	$ 216.1	$ 173.1	$ 457.4	$ 329.7
Cost of revenue, net	149.2	116.1	310.6	223.3
Gross profit	66.9	57.0	146.8	106.4
Operating expenses:
Research and development	57.0	50.2	112.2	100.1
Sales, general and administrative	55.7	48.0	110.7	97.0
Amortization or impairment of acquisition-related intangibles	2.8	3.6	5.7	7.2
Loss on disposal or impairment of other assets	0.1	0.5	0.2	0.3
Other operating expense	42.6	15.6	85.0	28.4
Operating loss	(91.3)	(60.9)	(167.0)	(126.6)
Non-operating (income) expense, net	(0.8)	27.8	(50.5)	31.9
Loss before income taxes	(90.5)	(88.7)	(116.5)	(158.5)
Income tax expense	0.4	8.0	0.6	8.3
Net loss	$ (90.9)	$ (96.7)	$ (117.1)	$ (166.8)
Basic and diluted loss per share
Net loss, basic (USD per share)	$ (0.73)	$ (0.82)	$ (0.94)	$ (1.42)
Net loss, diluted (USD per share)	$ (0.73)	$ (0.82)	$ (0.94)	$ (1.42)
Weighted average shares - basic (shares)	124,344	117,218	124,190	117,068
Weighted average shares - diluted (shares)	124,344	117,218	124,190	117,068