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Restructuring Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 27, 2020 | Sep. 29, 2019 | Sep. 27, 2020 | Sep. 29, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairments |  |  | $ 0.0 | $ 4.8
Total restructuring charges | $ 4.3 | $ 2.6 | 7.9 | 24.3
Other Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and related costs | 4.3 | 2.6 | 7.9 | 19.3
Asset impairments | 0.0 | 0.0 | 0.0 | 5.0
Total restructuring charges | 4.3 | 2.6 | 7.9 | 24.3
Gas Cylinders segment | Other Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and related costs | 3.4 | 2.3 | 6.8 | 18.9
Asset impairments | 0.0 | 0.0 | 0.0 | 0.6
Elektron segment | Other Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and related costs | 0.9 | 0.3 | 1.0 | 0.4
Asset impairments | 0.0 | 0.0 | 0.0 | 4.4
Other | Other Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance and related costs | $ 0.0 | $ 0.0 | $ 0.1 | $ 0.0

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