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Summary of Significant Accounting Policies - Cash, Cash Equivalents and Investments (Details) - USD ($)
$ in Millions
Dec. 30, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]    
Cash and cash equivalents $ 28.9 $ 17.4
Short-term investments 5.6 2.0
Other Assets 19.3 12.3
Amortized cost basis of debt securities 13.8 13.7
Debt securities    
Schedule of Investments [Line Items]    
Cash and cash equivalents 0.0 0.0
Short-term investments 1.2 2.0
Other Assets 12.3 10.8
Equity investments    
Schedule of Investments [Line Items]    
Cash and cash equivalents 0.0 0.0
Short-term investments 4.3 0.0
Other Assets 7.0 1.5
Cash and money market accounts    
Schedule of Investments [Line Items]    
Cash and cash equivalents 28.9 17.4
Short-term investments 0.0 0.0
Other Assets $ 0.0 $ 0.0