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BASIS OF PRESENTATION (Details)
$ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
Dec. 15, 2021
USD ($)
Aug. 02, 2021
USD ($)
Jun. 08, 2021
Apr. 19, 2021
USD ($)
Apr. 02, 2022
USD ($)
project
Dec. 31, 2021
USD ($)
Business Acquisition [Line Items]              
Number of large power projects | project           2  
Discontinued Operations, Disposed of by Sale | Transformer Solutions              
Business Acquisition [Line Items]              
Payment to purchaser           $ 13.9  
SPX Transformer Solutions, Inc. | Revenue Benchmark | Product Concentration Risk              
Business Acquisition [Line Items]              
Revenue percentage       25.00%      
Sealite              
Business Acquisition [Line Items]              
Cash consideration         $ 80.3    
Cash acquired         $ 2.3    
Enterprise Control Systems Ltd              
Business Acquisition [Line Items]              
Cash consideration     $ 39.4        
Cash acquired     5.1        
Deferred payment     $ 16.4        
Reduction in estimated liability           0.9 $ 6.7
Contingent consideration liability           $ 0.6 $ 1.5
Cincinnati Fan              
Business Acquisition [Line Items]              
Cash consideration   $ 145.2          
Cash acquired   $ 2.5          
International Tower Lighting, LLC              
Business Acquisition [Line Items]              
Cash consideration $ 41.8            
Cash acquired $ 1.1