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Business Combinations (Details) - USD ($)
$ in Millions
3 Months Ended
Feb. 08, 2018
Jun. 05, 2017
Mar. 03, 2017
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Business Combinations [Abstract]            
Net cash paid to acquire business       $ 94.9 $ 0.3  
Goodwill       1,308.3   $ 1,227.6
Revenues and Operating Income (Loss) [Abstract]            
Revenue       15.2 0.0  
Operating income       $ 0.4 $ 0.0  
Runtech Systems Oy [Member]            
Business Combinations [Abstract]            
Percentage interest acquired 100.00%          
Net cash paid to acquire business $ 94.9          
Goodwill 63.6          
Amortizable intangible assets 31.3          
Goodwill deductible for tax purposes $ 0.0          
LeROI Compressors [Member]            
Business Combinations [Abstract]            
Percentage interest acquired   100.00%        
Net cash paid to acquire business   $ 20.4        
Holdback recorded in accrued liabilities   1.9        
Goodwill deductible for tax purposes   $ 0.0        
Tamrotor Kompressorit Oy [Member]            
Business Combinations [Abstract]            
Non-controlling ownership interest acquired     49.00%      
Cash consideration     $ 5.2      
Holdback recorded in accrued liabilities     0.5      
Tamrotor Kompressorit Oy [Member] | Capital in Excess of Par Value [Member]            
Business Combinations [Abstract]            
Acquisition of non-controlling interest     2.3      
Tamrotor Kompressorit Oy [Member] | Accumulated Other Comprehensive Loss [Member]            
Business Combinations [Abstract]            
Acquisition of non-controlling interest     $ 1.5