v3.26.1
SHORT-TERM AND LONG-TERM DEBT (Summary of Long-Term Debt) (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
Jun. 30, 2026
NOK (kr)
Apr. 30, 2026
Dec. 31, 2025
USD ($)
Apr. 30, 2024
Debt Instrument [Line Items]          
Senior unsecured interest rate (in percentage)     7.75%    
Total debt principal $ 2,399,403     $ 2,584,131  
Less: Unamortized debt issuance costs (14,987)     (17,655)  
Less: Current portion of long-term debt (575,539)     (605,943)  
Total long-term debt $ 1,808,877     1,960,533  
7.25% senior unsecured sustainability-linked bonds due 2026          
Debt Instrument [Line Items]          
Senior unsecured interest rate (in percentage) 7.25% 7.25%      
7.25% senior unsecured sustainability-linked bonds due 2026 | Carrying value          
Debt Instrument [Line Items]          
Long-term debt $ 0     150,000  
U.S. dollar denominated fixed rate debt due 2026          
Debt Instrument [Line Items]          
Long-term debt, gross $ 0     145,875  
8.875% senior unsecured sustainability-linked bonds due 2027          
Debt Instrument [Line Items]          
Senior unsecured interest rate (in percentage) 8.875% 8.875%      
8.875% senior unsecured sustainability-linked bonds due 2027 | Carrying value          
Debt Instrument [Line Items]          
Long-term debt $ 150,000     150,000  
8.25% senior unsecured sustainability-linked bonds due 2028          
Debt Instrument [Line Items]          
Senior unsecured interest rate (in percentage) 8.25% 8.25%     8.25%
8.25% senior unsecured sustainability-linked bonds due 2028 | Carrying value          
Debt Instrument [Line Items]          
Long-term debt $ 147,600     147,600  
NOK750 million senior unsecured floating rate bonds due 2029          
Debt Instrument [Line Items]          
U.S. dollar floating rate debt | kr   kr 750,000,000      
NOK750 million senior unsecured floating rate bonds due 2029 | Carrying value          
Debt Instrument [Line Items]          
Long-term debt $ 75,740     74,327  
7.75% senior unsecured sustainability-linked bonds due 2030          
Debt Instrument [Line Items]          
Senior unsecured interest rate (in percentage) 7.75% 7.75%     7.75%
Long-term debt $ 225,000     144,400  
7.75% senior unsecured sustainability-linked bonds due 2030 | Carrying value          
Debt Instrument [Line Items]          
Long-term debt 225,000     144,400  
Floating Rate Debt          
Debt Instrument [Line Items]          
U.S. dollar denominated floating rate debt 1,154,412     1,085,540  
Lease debt financing          
Debt Instrument [Line Items]          
Long-term debt 646,700     686,400  
Long-term debt, gross $ 646,651     $ 686,389