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Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2024	Oct. 01, 2023	Sep. 29, 2024	Oct. 01, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 99.4	$ 97.4	$ 288.5	$ 309.1
Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	43.2	39.7	120.2	127.3
Transportation
Disaggregation of Revenue [Line Items]
Net sales	25.7	31.0	82.9	89.2
General industrial
Disaggregation of Revenue [Line Items]
Net sales	30.5	26.7	85.4	92.6
Gas Cylinders
Disaggregation of Revenue [Line Items]
Net sales	42.6	44.7	137.8	134.7
Gas Cylinders | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	19.2	20.3	64.4	59.3
Gas Cylinders | Transportation
Disaggregation of Revenue [Line Items]
Net sales	14.2	18.1	50.5	50.6
Gas Cylinders | General industrial
Disaggregation of Revenue [Line Items]
Net sales	9.2	6.3	22.9	24.8
Elektron
Disaggregation of Revenue [Line Items]
Net sales	48.8	45.6	128.5	151.0
Elektron | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	24.0	19.4	55.8	68.0
Elektron | Transportation
Disaggregation of Revenue [Line Items]
Net sales	11.5	12.9	32.4	38.6
Elektron | General industrial
Disaggregation of Revenue [Line Items]
Net sales	13.3	13.3	40.3	44.4
Graphic Arts
Disaggregation of Revenue [Line Items]
Net sales	8.0	7.1	22.2	23.4
Graphic Arts | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	0.0	0.0	0.0	0.0
Graphic Arts | Transportation
Disaggregation of Revenue [Line Items]
Net sales	0.0	0.0	0.0	0.0
Graphic Arts | General industrial
Disaggregation of Revenue [Line Items]
Net sales	$ 8.0	$ 7.1	$ 22.2	$ 23.4

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