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RETIREMENT PLANS AND RELATED POST RETIREMENT BENEFITS - Assumptions Used to Determine the Net Periodic Cost (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
SERP      
Defined Benefit Plan Disclosure      
Discount Rate 2.42% 3.17% 4.20%
SERP Medical | Minimum      
Defined Benefit Plan Disclosure      
Future Average Compensation Increases 2.00% 0.00%  
SERP Medical | Maximum      
Defined Benefit Plan Disclosure      
Future Average Compensation Increases 3.00% 2.00% 2.00%