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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 26, 2021	Jun. 27, 2021	Mar. 28, 2021	Dec. 31, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 98.7	$ 91.2	$ 99.0	$ 85.2	$ 82.1	$ 77.7	$ 76.6	$ 88.4	$ 374.1	$ 324.8	$ 373.4
General industrial
Disaggregation of Revenue [Line Items]
Revenue									129.2	111.9	136.4
Transportation
Disaggregation of Revenue [Line Items]
Revenue									117.0	92.1	108.0
Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Revenue									127.9	120.8	129.0
Gas Cylinders
Disaggregation of Revenue [Line Items]
Revenue									178.3	141.9	153.5
Gas Cylinders | General industrial
Disaggregation of Revenue [Line Items]
Revenue									33.4	24.2	24.7
Gas Cylinders | Transportation
Disaggregation of Revenue [Line Items]
Revenue									71.2	49.8	48.5
Gas Cylinders | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Revenue									73.7	67.9	80.3
Elektron
Disaggregation of Revenue [Line Items]
Revenue									195.8	182.9	219.9
Elektron | General industrial
Disaggregation of Revenue [Line Items]
Revenue									95.8	87.7	111.7
Elektron | Transportation
Disaggregation of Revenue [Line Items]
Revenue									45.8	42.3	59.5
Elektron | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Revenue									$ 54.2	$ 52.9	$ 48.7

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