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v3.19.1

Segmental Information - Financial information by reportable segment (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Sales | $ 110.9 | $ 129.1 | $ 128.2 | $ 119.7 | $ 116.1 | $ 115.2 | $ 106.6 | $ 103.4 | $ 487.9 | $ 441.3 | $ 414.8
Adjusted EBITDA |  |  |  |  |  |  |  |  | 79.6 | 59.3 | 51.3
Depreciation and amortization |  |  |  |  |  |  |  |  | 19.0 | 18.3 | 18.0
Restructuring charges | 11.3 |  |  |  |  |  |  |  | 13.4 | 8.4 | 0.4
Total assets | 390.4 |  |  |  | 415.8 |  |  |  | 390.4 | 415.8 | 399.8
Capital expenditure |  |  |  |  |  |  |  |  | 13.6 | 10.0 | 17.3
Gas Cylinders segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 238.1 | 220.2 | 225.8
Adjusted EBITDA |  |  |  |  |  |  |  |  | 23.4 | 17.0 | 18.3
Depreciation and amortization |  |  |  |  |  |  |  |  | 7.3 | 7.2 | 7.4
Restructuring charges |  |  |  |  |  |  |  |  | 10.0 | 2.9 | 0.0
Elektron segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  |  |  | 249.8 | 221.1 | 189.0
Adjusted EBITDA |  |  |  |  |  |  |  |  | 56.2 | 42.3 | 33.0
Depreciation and amortization |  |  |  |  |  |  |  |  | 11.7 | 11.1 | 10.6
Restructuring charges |  |  |  |  |  |  |  |  | 3.4 | 5.5 | 0.4
Operating Segments | Gas Cylinders segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total assets | 145.6 |  |  |  | 156.9 |  |  |  | 145.6 | 156.9 | 151.9
Capital expenditure |  |  |  |  |  |  |  |  | 2.8 | 3.5 | 7.2
Operating Segments | Elektron segment |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total assets | 210.5 |  |  |  | 210.4 |  |  |  | 210.5 | 210.4 | 190.9
Capital expenditure |  |  |  |  |  |  |  |  | 10.5 | 5.8 | 10.1
Other |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total assets | $ 34.3 |  |  |  | $ 48.5 |  |  |  | 34.3 | 48.5 | 57.0
Capital expenditure |  |  |  |  |  |  |  |  | $ 0.3 | $ 0.7 | $ 0.0

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