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Reportable Segments - Segment Income (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Segment Reporting Information    
Sales $ 354.1 $ 288.5
Depreciation and amortization expense 20.5 19.5
Operating income (loss) 20.1 28.8
Restructuring costs 0.1 0.7
Decrease in fair value of contingent consideration liabilities (0.8) 0.8
Heat Transfer Systems    
Segment Reporting Information    
Restructuring costs 0.1  
Operating Segments | Cryo Tank Solutions    
Segment Reporting Information    
Sales 118.1 103.9
Depreciation and amortization expense 4.1 3.9
Operating income (loss) 14.1 15.6
Restructuring costs 0.0 0.3
Operating Segments | Heat Transfer Systems    
Segment Reporting Information    
Sales 79.3 69.2
Depreciation and amortization expense 7.7 9.5
Operating income (loss) (0.2) 3.8
Restructuring costs 0.1 0.4
Operating Segments | Specialty Products    
Segment Reporting Information    
Sales 107.5 77.3
Depreciation and amortization expense 3.9 3.1
Operating income (loss) 16.2 17.9
Restructuring costs 0.0 0.0
Operating Segments | Repair, Service & Leasing    
Segment Reporting Information    
Sales 49.3 41.4
Depreciation and amortization expense 4.3 2.6
Operating income (loss) 8.3 8.3
Restructuring costs 0.0 0.0
Intersegment Eliminations    
Segment Reporting Information    
Sales (0.1) (3.3)
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 0.5 0.4
Operating income (loss) (18.3) (16.8)
Restructuring costs $ 0.0 $ 0.0