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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | Disaggregated revenue from continuing operations for the fiscal years ended December 31, 2022, 2021, and 2020, are included below and in Note 17, Segment Information.
|  | Years ended December 31, |
|  | 2022 |  | 2021 |  | 2020 |
| In millions | Gas Cylinders | Elektron | Total |  | Gas Cylinders | Elektron | Total |  | Gas Cylinders | Elektron | Total |
| General industrial | $ | 34.0 |  | $ | 121.5 |  | $ | 155.5 |  |  | $ | 33.4 |  | $ | 95.8 |  | $ | 129.2 |  |  | $ | 24.2 |  | $ | 87.7 |  | $ | 111.9 |  |
| Transportation | 77.8 |  | 55.1 |  | 132.9 |  |  | 71.2 |  | 45.8 |  | 117.0 |  |  | 49.8 |  | 42.3 |  | 92.1 |  |
| Defense, First Response & Healthcare | 71.9 |  | 63.1 |  | 135.0 |  |  | 73.7 |  | 54.2 |  | 127.9 |  |  | 67.9 |  | 52.9 |  | 120.8 |  |
|  | $ | 183.7 |  | $ | 239.7 |  | $ | 423.4 |  |  | $ | 178.3 |  | $ | 195.8 |  | $ | 374.1 |  |  | $ | 141.9 |  | $ | 182.9 |  | $ | 324.8 |  |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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