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EMPLOYEE RETIREMENT PLANS - Assumptions Used to Determine Net Periodic Pension Cost (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Assumptions used to determine the net periodic pension cost [Abstract]      
Discount rate 1.54% 2.64% 3.82%
Rate of compensation increases 3.50% 3.50% 3.50%