Income Taxes - Tax Effects of Temporary Differences that Give Rise to Significant Portions of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 25, 2023	Jun. 26, 2022
Deferred tax assets:
Compensation	$ 7.7	$ 11.8
Inventories	39.3	22.5
Sales return reserve and allowance for bad debts	7.0	5.0
Federal and state net operating loss carryforwards	366.1	321.0
Federal income tax credits	59.0	48.2
State income tax credits	1.0	1.2
48C investment tax credits	35.7	35.7
Investments	5.2	5.3
Stock-based compensation	10.0	7.2
Deferred revenue	9.0	18.9
Lease liabilities	29.5	12.6
Capitalized research and development	57.1	0.0
Convertible notes	73.7	0.0
Other	6.9	4.7
Total gross deferred assets	707.2	494.1
Less valuation allowance	(543.9)	(339.2)
Deferred tax assets, net	163.3	154.9
Deferred tax liabilities:
Property and equipment	(107.1)	(75.1)
Intangible assets	(22.7)	(19.1)
Prepaid taxes and other	(0.5)	(0.6)
Foreign earnings recapture	(4.3)	(4.3)
Taxes on unremitted foreign earnings	(6.5)	(7.4)
Lease assets	(24.9)	(12.6)
Convertible notes	0.0	(38.0)
Total gross deferred liability	(166.0)	(157.1)
Deferred tax liability, net	$ (2.7)	$ (2.2)