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Restructuring - Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2023	Jun. 26, 2022	Jul. 02, 2023	Jun. 26, 2022
Restructuring Cost and Reserve [Line Items]
Severance and other costs	$ 0.2	$ 0.3	$ 0.5	$ 1.7
Asset impairments			2.3	0.0
Total restructuring charges	2.5	0.3	2.8	1.7
Gas Cylinders
Restructuring Cost and Reserve [Line Items]
Severance and other costs	0.2	0.1	0.5	1.5
Asset impairments	2.3	0.0	2.3	0.0
Elektron
Restructuring Cost and Reserve [Line Items]
Severance and other costs	$ 0.0	$ 0.2	$ 0.0	$ 0.2

X

- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of restructuring charges, remediation cost, and asset impairment loss.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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