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Segmental Information - Geographic Information by Region (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jul. 02, 2023 | Jun. 30, 2024 | Jul. 02, 2023
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 99.7 | $ 110.4 | $ 189.1 | $ 211.7
Top five countries |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 78.6 | $ 86.5 | $ 149.2 | $ 162.4
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 | 78.90% | 78.40% | 78.90% | 76.70%
United States |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 57.3 | $ 67.8 | $ 110.5 | $ 125.5
United States | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 57.60% | 61.50% | 58.40% | 59.30%
Germany |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 7.2 | $ 3.8 | $ 12.6 | $ 10.1
Germany | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 7.20% | 3.40% | 6.70% | 4.80%
United Kingdom |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 6.3 | $ 5.2 | $ 10.6 | $ 10.8
United Kingdom | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 6.30% | 4.70% | 5.60% | 5.10%
Japan |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 5.0 | $ 6.3 | $ 9.0 | $ 10.8
Japan | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 5.00% | 5.70% | 4.80% | 5.10%
Canada |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 2.8 | $ 3.4 | $ 6.5 | $ 5.2
Canada | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 2.80% | 3.10% | 3.40% | 2.50%
Rest of Europe |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 12.3 | $ 11.7 | $ 24.4 | $ 24.7
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 | 12.30% | 10.60% | 13.00% | 11.70%
Asia Pacific |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 6.7 | $ 8.3 | $ 10.3 | $ 17.3
Asia Pacific | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 6.70% | 7.50% | 5.40% | 8.20%
Other |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Net sales | $ 2.1 | $ 3.9 | $ 5.2 | $ 7.3
Other | Revenue from Contract with Customer Benchmark | Geographic Concentration Risk |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 2.10% | 3.50% | 2.70% | 3.40%

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