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EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 02, 2022
Apr. 02, 2022
Jul. 02, 2022
Feb. 17, 2022
Pension Plan | UNITED STATES        
Employee Benefit Plans        
Benefit (charge) due to settlement $ (1.5)      
Projected benefit obligation     $ 10.0  
Defined benefit plan, net periodic benefit expense     $ 2.3  
Defined benefit plan, assumptions used calculating benefit obligation, discount rate 4.86% 2.83%    
SPX Postretirement Plans        
Employee Benefit Plans        
Consideration payable       $ 10.0
Benefit obligation, payment for settlement   $ 9.0    
Loss on settlement   0.7    
Benefit (charge) due to settlement   $ 0.4