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Business Combinations - Air-X-Changers Narratives (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 01, 2019
Sep. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Business Acquisition        
Payment for acquisition of businesses, net of cash acquired     $ 0.0 $ 4.2
AXC        
Business Acquisition        
Payment for acquisition of businesses, net of cash acquired $ 599.7      
Payments for acquisition of business excluding working capital adjustments   $ 592.0    
Payment for working capital adjustments   $ 7.7    
Adjustments for deferred tax liabilities     $ 0.4  
AXC | Minimum        
Business Acquisition        
Finite lived intangible assets useful life 1 year      
AXC | Maximum        
Business Acquisition        
Finite lived intangible assets useful life 14 years