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Segment Information - Financial Information by Reportable Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Sep. 25, 2022
Jun. 26, 2022
Mar. 27, 2022
Dec. 31, 2021
Sep. 26, 2021
Jun. 27, 2021
Mar. 28, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items]                      
Net Sales $ 116.7 $ 100.2 $ 109.5 $ 97.0 $ 98.7 $ 91.2 $ 99.0 $ 85.2 $ 423.4 $ 374.1 $ 324.8
Adjusted EBITDA                 63.1 63.4 53.9
Depreciation and amortization                 13.6 15.6 13.3
Restructuring Charges                 1.9 6.2 8.9
Total assets 407.1       368.8       407.1 368.8  
Capital expenditure                 8.6 9.0 7.4
Discontinued operations                      
Segment Reporting Information [Line Items]                      
Total assets 8.1       4.8       8.1 4.8  
Capital expenditure                 0.0 0.1 0.3
Other segment                      
Segment Reporting Information [Line Items]                      
Depreciation and amortization                 0.0 0.0 0.0
Restructuring Charges                 0.0 0.0 0.1
Total assets 49.5       34.8       49.5 34.8  
Capital expenditure                 0.0 0.0 0.0
Intersegment Eliminations                      
Segment Reporting Information [Line Items]                      
Net Sales                 0.0 0.0 0.0
Gas Cylinders Segment                      
Segment Reporting Information [Line Items]                      
Net Sales                 183.7 178.3 141.9
Gas Cylinders Segment | Operating Segments                      
Segment Reporting Information [Line Items]                      
Net Sales                 183.7 178.3 141.9
Adjusted EBITDA                 12.8 22.7 21.3
Depreciation and amortization                 4.8 5.8 3.7
Restructuring Charges                 1.7 5.3 7.9
Total assets 133.1       122.7       133.1 122.7  
Capital expenditure                 1.2 1.0 2.0
Elektron Segment                      
Segment Reporting Information [Line Items]                      
Net Sales                 239.7 195.8 182.9
Elektron Segment | Operating Segments                      
Segment Reporting Information [Line Items]                      
Net Sales                 239.7 195.8 182.9
Adjusted EBITDA                 50.3 40.7 32.6
Depreciation and amortization                 8.8 9.8 9.6
Restructuring Charges                 0.2 0.9 0.9
Total assets $ 216.4       $ 206.5       216.4 206.5  
Capital expenditure                 $ 7.4 $ 7.9 $ 5.1