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BASIS OF PRESENTATION (Details) - USD ($)
$ in Millions
4 Months Ended
Aug. 02, 2021
Jun. 08, 2021
Apr. 19, 2021
Nov. 11, 2020
Sep. 02, 2020
Oct. 02, 2021
Dec. 31, 2020
Revenue Benchmark | Product Concentration Risk | HVAC reportable segment              
Business Acquisition [Line Items]              
Revenue percentage           5.00%  
SPX Transformer Solutions, Inc.              
Business Acquisition [Line Items]              
Proceeds from sale of business   $ 645.0          
SPX Transformer Solutions, Inc. | Revenue Benchmark | Product Concentration Risk              
Business Acquisition [Line Items]              
Revenue percentage   25.00%          
Enterprise Control Systems Ltd              
Business Acquisition [Line Items]              
Payment for acquisition $ 39.4            
Cash acquired 5.1            
Deferred payment $ 16.8            
Contingent consideration liability           $ 8.2  
ULC Robotics              
Business Acquisition [Line Items]              
Payment for acquisition         $ 89.2    
Cash acquired         4.0    
Deferred payment         $ 45.0    
Contingent consideration liability             $ 24.3
Sensors & Software Inc.              
Business Acquisition [Line Items]              
Payment for acquisition       $ 15.5      
Cash acquired       0.3      
Deferred payment       $ 3.9      
Contingent consideration liability           $ 0.7  
Sealite              
Business Acquisition [Line Items]              
Payment for acquisition     $ 80.3        
Cash acquired     $ 2.3