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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

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