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Net Sales - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 97.0	$ 89.4
Specialty industrial
Disaggregation of Revenue [Line Items]
Net sales	27.7	26.0
Transportation
Disaggregation of Revenue [Line Items]
Net sales	25.7	28.9
Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	43.6	34.5
Gas Cylinders
Disaggregation of Revenue [Line Items]
Net sales	41.1	45.4
Gas Cylinders | Specialty industrial
Disaggregation of Revenue [Line Items]
Net sales	7.1	5.7
Gas Cylinders | Transportation
Disaggregation of Revenue [Line Items]
Net sales	14.8	19.1
Gas Cylinders | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	19.2	20.6
Elektron
Disaggregation of Revenue [Line Items]
Net sales	49.4	37.7
Elektron | Specialty industrial
Disaggregation of Revenue [Line Items]
Net sales	14.1	14.0
Elektron | Transportation
Disaggregation of Revenue [Line Items]
Net sales	10.9	9.8
Elektron | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	24.4	13.9
Graphic Arts
Disaggregation of Revenue [Line Items]
Net sales	6.5	6.3
Graphic Arts | Specialty industrial
Disaggregation of Revenue [Line Items]
Net sales	6.5	6.3
Graphic Arts | Transportation
Disaggregation of Revenue [Line Items]
Net sales	0.0	0.0
Graphic Arts | Defense, First Response & Healthcare
Disaggregation of Revenue [Line Items]
Net sales	$ 0.0	$ 0.0

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