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RETIREMENT PLANS - Multi-employer pension plan (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
employee
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
RETIREMENT PLANS      
Number of employee covered | employee 541    
Contribution cost | $ $ 6.2 $ 6.6 $ 3.1