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Basis of Presentation and New Accounting Standards - Schedule of Other Current Assets (Details) $ in Millions	Mar. 29, 2026 USD ($)	Dec. 28, 2025 property	Sep. 29, 2025 USD ($)	Jun. 29, 2025 USD ($) property	Mar. 30, 2025 property
Basis of Presentation and Changes in Significant Accounting Policies [Line Items]
Reimbursement receivable on long-term incentive agreement	$ 0.5			$ 33.1
Assets held for sale	1.8			24.4
MACOM Shares	0.0			102.0
VAT receivables	0.6			9.1
Insurance deposit	0.0			7.4
Accrued interest receivable	4.3			5.4
Short-term spares	34.4			0.0
Other	10.9			19.5
Other current assets	52.5		$ 119.9	$ 222.0
Disposal Group, Held-for-Sale, Not Discontinued Operations
Basis of Presentation and Changes in Significant Accounting Policies [Line Items]
Number of properties held-for-sale \| property					3
Discontinued Operations, Disposed of by Sale
Basis of Presentation and Changes in Significant Accounting Policies [Line Items]
Number of properties held-for-sale \| property		1		2
RF Business Master Supply Agreement
Basis of Presentation and Changes in Significant Accounting Policies [Line Items]
Inventory related to the RF Master Supply Agreement	0.0			$ 15.8
Receivable on RF Master Supply Agreement	$ 0.0			$ 5.3