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PENSIONS - Narrative (Details)
$ in Thousands
 8 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
defined_benefit_plan
Dec. 31, 2024
USD ($)
defined_benefit_plan
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
May 31, 2024
defined_benefit_plan
Pensions:          
Defined contribution scheme, charge to net income   $ 1,500 $ 1,600 $ 1,700  
Number of defined benefit schemes | defined_benefit_plan 2 2      
Number of defined benefit schemes with buy-in insurance agreement | defined_benefit_plan         1
Other comprehensive income, defined benefit plan, before reclassification adjustment, after tax $ 1,900        
Defined benefit plan, net periodic benefit cost (credit) excluding service cost, statement of income or comprehensive income [Extensible Enumeration]   General and Administrative Expense, Vessel Operating Expenses      
Net periodic benefit cost   $ 2,413 1,535 1,682  
Expected amortization loss 1,300 $ 1,300 $ 300    
Defined benefit plan, amortization period   3 years 15 years    
Accumulated benefit obligation 31,600 $ 31,600 $ 33,200    
Accumulated other comprehensive income (loss), gain (loss), before tax $ 4,300 4,300 4,500    
Other comprehensive income, tax on actuarial loss   9 400 $ 300  
Employer contributions   2,290 2,175    
General and administrative expense          
Pensions:          
Net periodic benefit cost   1,200 200    
Administrative expense and vessel operating expense          
Pensions:          
Net periodic benefit cost   $ 1,200 $ 1,400