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Business Combinations - Pro Forma Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]    
Pro forma sales from continuing operations $ 3,657.7 $ 3,314.6
Pro forma net loss attributable to Chart Industries, Inc. from continuing operations $ 6.1 $ 164.0