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Goodwill and Intangible Assets - Goodwill (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Goodwill    
Beginning Balance, Goodwill $ 468.8  
Foreign currency translation adjustments 1.5  
Goodwill acquired during the year 4.7  
Ending Balance, Goodwill 475.0  
Accumulated goodwill impairment loss 195.8 $ 195.8
Energy & Chemicals    
Goodwill    
Beginning Balance, Goodwill 275.1  
Foreign currency translation adjustments 0.9  
Goodwill acquired during the year 0.0  
Ending Balance, Goodwill 276.0  
Accumulated goodwill impairment loss 64.6 64.6
Distribution & Storage    
Goodwill    
Beginning Balance, Goodwill 169.2  
Foreign currency translation adjustments 0.6  
Goodwill acquired during the year 4.7  
Ending Balance, Goodwill 174.5  
Accumulated goodwill impairment loss 0.0 0.0
BioMedical    
Goodwill    
Beginning Balance, Goodwill 24.5  
Foreign currency translation adjustments 0.0  
Goodwill acquired during the year 0.0  
Ending Balance, Goodwill 24.5  
Accumulated goodwill impairment loss $ 131.2 $ 131.2