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Reportable Segments - Segment Income (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Segment Reporting Information    
Sales $ 950.7 $ 531.5
Depreciation and amortization expense 65.9 33.3
Operating income (loss) 112.9 34.6
Sustainable Energy Solutions, Inc.    
Segment Reporting Information    
(Decrease) increase in fair value of contingent consideration liabilities   (7.4)
Operating Segments | Cryo Tank Solutions    
Segment Reporting Information    
Sales 159.7 123.5
Depreciation and amortization expense 5.3 5.6
Operating income (loss) 14.0 4.3
Operating Segments | Heat Transfer Systems    
Segment Reporting Information    
Sales 253.6 167.5
Depreciation and amortization expense 9.2 8.4
Operating income (loss) 51.2 27.3
Operating Segments | Specialty Products    
Segment Reporting Information    
Sales 236.5 126.2
Depreciation and amortization expense 7.1 8.6
Operating income (loss) 25.1 21.8
Operating Segments | Repair, Service & Leasing    
Segment Reporting Information    
Sales 301.0 118.5
Depreciation and amortization expense 43.0 9.9
Operating income (loss) 65.1 33.1
Intersegment Eliminations    
Segment Reporting Information    
Sales (0.1) (4.2)
Depreciation and amortization expense 0.0 0.0
Operating income (loss) 0.0 0.0
Corporate    
Segment Reporting Information    
Sales 0.0 0.0
Depreciation and amortization expense 1.3 0.8
Operating income (loss) $ (42.5) $ (51.9)