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ACCOUNTING POLICIES (Details)
12 Months Ended
Dec. 31, 2021
recycling_market
reporting_unit
lease
Dec. 31, 2020
lease
Property, Plant and Equipment [Line Items]    
Average period over which market price of scrap per ton is calculated 10 years  
Number of recycling markets | recycling_market 3  
Number of leases acquired through merger | lease 2 2
Number of reporting units | reporting_unit 1  
Vessel    
Property, Plant and Equipment [Line Items]    
Estimated remaining economic useful life 25 years  
Other Equipment    
Property, Plant and Equipment [Line Items]    
Estimated remaining economic useful life 5 years  
Minimum    
Property, Plant and Equipment [Line Items]    
Ownership percentage 20.00%  
Maximum    
Property, Plant and Equipment [Line Items]    
Ownership percentage 50.00%