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Segment Information - Financial Information by Reportable Segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 27, 2022
Mar. 28, 2021
Dec. 31, 2021
Segment Reporting Information [Line Items]      
Net sales $ 97.0 $ 85.2  
Adjusted EBITDA 16.1 17.7  
Depreciation and amortization 3.7 3.4  
Restructuring charges 1.4 1.4  
Total assets 414.5   $ 368.8
Capital expenditures 1.0 1.5  
Discontinued operations      
Segment Reporting Information [Line Items]      
Total assets 7.7   4.8
Capital expenditures 0.0 0.0  
Other      
Segment Reporting Information [Line Items]      
Total assets 44.3   34.8
Capital expenditures 0.0 0.0  
Gas Cylinders segment      
Segment Reporting Information [Line Items]      
Net sales 42.4 36.2  
Adjusted EBITDA 2.7 6.0  
Depreciation and amortization 1.4 0.9  
Restructuring charges 1.4 0.5  
Gas Cylinders segment | Operating Segments      
Segment Reporting Information [Line Items]      
Total assets 140.0   122.7
Capital expenditures 0.2 0.3  
Elektron segment      
Segment Reporting Information [Line Items]      
Net sales 54.6 49.0  
Adjusted EBITDA 13.4 11.7  
Depreciation and amortization 2.3 2.5  
Restructuring charges 0.0 0.9  
Elektron segment | Operating Segments      
Segment Reporting Information [Line Items]      
Total assets 222.5   $ 206.5
Capital expenditures $ 0.8 $ 1.2