Quarterly report [Sections 13 or 15(d)]

Property, Plant and Equipment (Details)

v3.25.3
Property, Plant and Equipment (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Dec. 28, 2024
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 122.2   $ 122.2   $ 101.9
Less: accumulated depreciation (53.7)   (53.7)   (45.1)
Total property and equipment 68.5   68.5   56.8
Depreciation     9.1 $ 8.9  
Cost of Sales          
Property, Plant and Equipment [Line Items]          
Depreciation 2.3 $ 2.0 6.4 5.7  
Operating Expense          
Property, Plant and Equipment [Line Items]          
Depreciation 0.9 $ 1.0 2.7 $ 3.2  
Land          
Property, Plant and Equipment [Line Items]          
Gross property and equipment 3.4   3.4   3.4
Building          
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 6.1   $ 6.1   0.0
Useful lives 39 years   39 years    
Manufacturing machinery and equipment          
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 65.7   $ 65.7   50.6
Manufacturing machinery and equipment | Minimum          
Property, Plant and Equipment [Line Items]          
Useful lives 3 years   3 years    
Manufacturing machinery and equipment | Maximum          
Property, Plant and Equipment [Line Items]          
Useful lives 7 years   7 years    
Leasehold improvements          
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 15.3   $ 15.3   12.9
Computer and software          
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 16.4   $ 16.4   16.3
Useful lives 3 years   3 years    
Furniture and fixtures, and vehicles          
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 6.9   $ 6.9   5.9
Furniture and fixtures, and vehicles | Minimum          
Property, Plant and Equipment [Line Items]          
Useful lives 3 years   3 years    
Furniture and fixtures, and vehicles | Maximum          
Property, Plant and Equipment [Line Items]          
Useful lives 7 years   7 years    
Construction in progress          
Property, Plant and Equipment [Line Items]          
Gross property and equipment $ 8.4   $ 8.4   $ 12.8