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Business Combinations - Pro Forma Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Business Acquisition, Pro Forma Information |  |  |  |
Pro forma sales from continuing operations | $ 908.1 | $ 823.4 |  |
Pro forma net income (loss) attributable to Chart Industries, Inc. from continuing operations | $ 9.1 | $ (14.7) |  |
Howden Industries |  |  |  |
Business Acquisition, Pro Forma Information |  |  |  |
Pro forma sales from continuing operations |  |  | $ 1,744.8 | $ 1,574.3
Pro forma net income (loss) attributable to Chart Industries, Inc. from continuing operations |  |  | $ (63.3) | $ (90.1)

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