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BASIS OF PRESENTATION (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Sep. 20, 2023
Jun. 27, 2022
Dempsey Wood Products, LLC      
Ownership interest     50.00%
Dempsey Wood Products, LLC | Sellers      
Ownership interest     50.00%
UFP Palets      
Ownership interest   80.00%  
UFP Palets | Sellers      
Ownership interest   20.00%  
Dempsey Wood Products, LLC      
Sellers put right     $ 50.0
Call right     $ 70.0
Carrying value $ 63.0    
UFP Palets      
Carrying value $ 53.6