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Restructuring charges | 12 Months Ended
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Dec. 31, 2025
Restructuring and Related Activities [Abstract] |
Restructuring charges | Restructuring charges During 2025, 2024 and 2023, we initiated and continued execution of certain business restructuring initiatives aimed at reducing our fixed cost structure and realigning our business. Restructuring costs by reportable segment were as follows:
|  |  | Years ended December 31, |
| In millions |  | 2025 |  | 2024 |  | 2023 |
| Severance and other costs |  |  |  |  |  |  |
| Gas Cylinders Segment |  | $ | (2.1) |  |  | $ | (1.7) |  |  | $ | (2.9) |  |
| Elektron Segment |  | (0.4) |  |  | (0.2) |  |  | (0.3) |  |
|  |  | $ | (2.5) |  |  | $ | (1.9) |  |  | $ | (3.2) |  |
| Asset impairments |  |  |  |  |  |  |
| Gas Cylinders Segment |  | $ | (4.4) |  |  | $ | (2.8) |  |  | $ | (3.0) |  |
| Elektron Segment |  | (2.1) |  |  | — |  |  | (0.2) |  |
|  |  | $ | (6.5) |  |  | $ | (2.8) |  |  | $ | (3.2) |  |
| Total restructuring charges |  | $ | (9.0) |  |  | $ | (4.7) |  |  | $ | (6.4) |  |
Activity related to restructuring, recorded in other current liabilities in the consolidated balance sheets is summarized as follows:
| In millions | 2025 |  | 2024 |
| Balance at January 1, | $ | 0.2 |  |  | $ | 3.3 |  |
| Costs incurred | 2.5 |  |  | 1.9 |  |
| Cash payments and other | (2.3) |  |  | (5.0) |  |
| Balance at December 31, | $ | 0.4 |  |  | $ | 0.2 |  |

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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/420/tableOfContent Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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