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Revenue - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 29, 2024
Dec. 31, 2023
Jan. 01, 2023
Disaggregation of Revenue [Line Items]      
Deferred revenue $ 33.5 $ 36.8  
Deferred revenue, noncurrent 17.3 13.9  
Deferred revenue, revenue recognized 34.0 72.1  
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement      
Disaggregation of Revenue [Line Items]      
Gross Profit 29.5 47.3 $ 18.6
Revenue 8.4 26.0 7.5
Collaborative Arrangement, Transaction with Party to Collaborative Arrangement and Third Party      
Disaggregation of Revenue [Line Items]      
Gross Profit 21.1 21.4 $ 11.1
Prepaid expenses and other current assets      
Disaggregation of Revenue [Line Items]      
Contract assets 32.5 46.2  
Customer 1      
Disaggregation of Revenue [Line Items]      
Contract assets 0.0 1.9  
Expected Value Contract Customers | Prepaid expenses and other current assets      
Disaggregation of Revenue [Line Items]      
Contract assets 32.5 41.8  
Customer 2      
Disaggregation of Revenue [Line Items]      
Contract assets $ 0.0 $ 2.5