Balance Sheet Account Details Marketable Securities (Details) - USD ($) $ in Millions	Dec. 29, 2024	Dec. 31, 2023
Total marketable securities, current
Marketable Securities [Line Items]
Amortized Cost		$ 48.5
Gross Unrealized Losses		(0.1)
Fair Value		48.4
Total marketable securities
Marketable Securities [Line Items]
Amortized Cost		55.9
Gross Unrealized Losses		(0.1)
Fair Value	$ 0.0	55.8
Corporate bonds \| Total marketable securities, current
Marketable Securities [Line Items]
Amortized Cost		38.1
Gross Unrealized Losses		(0.1)
Fair Value		38.0
Corporate bonds \| Total marketable securities
Marketable Securities [Line Items]
Amortized Cost		4.5
Gross Unrealized Losses		0.0
Fair Value		4.5
Corporate asset-backed securities \| Total marketable securities, current
Marketable Securities [Line Items]
Amortized Cost		8.9
Gross Unrealized Losses		0.0
Fair Value		8.9
Corporate asset-backed securities \| Total marketable securities
Marketable Securities [Line Items]
Amortized Cost		0.9
Gross Unrealized Losses		0.0
Fair Value		0.9
Agency bonds \| Total marketable securities, current
Marketable Securities [Line Items]
Amortized Cost		1.5
Gross Unrealized Losses		0.0
Fair Value		1.5
Sovereign government bonds \| Total marketable securities
Marketable Securities [Line Items]
Amortized Cost		2.0
Gross Unrealized Losses		0.0
Fair Value		$ 2.0

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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