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ENVIRONMENTAL AND NATURAL RESOURCE DAMAGE LIABILITIES - Narrative (Details)
9 Months Ended
Sep. 30, 2022
Minimum | Millsite Cleanup and Natural Resource Damages Restoration  
Property, Plant and Equipment [Line Items]  
Natural resource damages restoration monitoring term (in years) 1 year
Minimum | Port Gamble Location  
Property, Plant and Equipment [Line Items]  
Natural resource damages restoration monitoring term (in years) 10 years
Maximum | Millsite Cleanup and Natural Resource Damages Restoration  
Property, Plant and Equipment [Line Items]  
Natural resource damages restoration monitoring term (in years) 2 years
Maximum | Port Gamble Location  
Property, Plant and Equipment [Line Items]  
Natural resource damages restoration monitoring term (in years) 15 years