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Segmental Information - Geographic Information by Region (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 01, 2023
Sep. 25, 2022
Oct. 01, 2023
Sep. 25, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 97.4 $ 100.2 $ 309.1 $ 306.7
Top five countries        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 76.4 $ 73.6 $ 238.8 $ 226.4
Top five countries | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 78.50% 73.50% 77.20% 73.80%
United States        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 59.0 $ 57.0 $ 184.5 $ 174.0
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 60.70% 56.90% 59.70% 56.70%
Japan        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 5.1 $ 5.1 $ 15.9 $ 12.6
Japan | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 5.20% 5.10% 5.10% 4.10%
United Kingdom        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 4.3 $ 4.6 $ 15.1 $ 16.0
United Kingdom | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 4.40% 4.60% 4.90% 5.20%
Germany        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 4.7 $ 4.4 $ 14.8 $ 15.3
Germany | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 4.80% 4.40% 4.80% 5.00%
Canada        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 3.3 $ 2.5 $ 8.5 $ 8.5
Canada | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 3.40% 2.50% 2.70% 2.80%
Rest of Europe        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 10.8 $ 11.0 $ 35.5 $ 34.2
Rest of Europe | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 11.10% 11.00% 11.50% 11.20%
Asia Pacific        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 4.9 $ 13.2 $ 22.2 $ 38.1
Asia Pacific | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 5.00% 13.10% 7.20% 12.40%
Other        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Net sales $ 5.3 $ 2.4 $ 12.6 $ 8.0
Other | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Concentration risk, percentage 5.40% 2.40% 4.10% 2.60%