v3.26.1
Financial Instruments - Carrying Values and Estimated Fair Values (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Non-Derivatives:        
Cash and cash equivalents $ 870,474 $ 783,427 $ 1,151,221 $ 566,384
Trade accounts receivable and accrued income 65,167   35,518  
Current portion of long-term debt and short-term debt (251,499)   (301,202)  
Long-term debt (2,423,920)   (2,456,822)  
Derivatives:        
Deposits, money market deposits 657,600   920,500  
Interest income, money market deposits 19,200 12,900    
Deferred financing costs 42,288   47,013  
FLNG Esperanza        
Non-Derivatives:        
Trade accounts payable (21,700)   (91,000)  
FLNG Hilli project        
Non-Derivatives:        
Trade accounts payable (11,600)   (14,100)  
Gimi commissioning works        
Non-Derivatives:        
Trade accounts payable (600)   (5,000)  
2025 Convertible Bonds | Convertible Debt        
Derivatives:        
Interest expense 8,000 $ 44    
Amortization of deferred financing costs 1,000      
Level 1 | Carrying value        
Non-Derivatives:        
Cash and cash equivalents 870,474   1,151,221  
Restricted cash 37,987   64,196  
Trade accounts receivable and accrued income 65,167   35,518  
Interest receivable from money-market deposits and bank accounts 2,207   3,353  
Receivable from IRS derivatives 116   269  
Trade accounts payable (39,825)   (123,605)  
Level 1 | Carrying value | 2024 Unsecured Bonds        
Non-Derivatives:        
Long-term debt - 2024 Unsecured Bonds (300,000)   (300,000)  
Level 1 | Carrying value | 2025 Senior Unsecured Notes        
Non-Derivatives:        
Long-term debt - 2024 Unsecured Bonds (500,000)   (500,000)  
Level 1 | Fair value        
Non-Derivatives:        
Cash and cash equivalents, fair value 870,474   1,151,221  
Restricted cash, fair value 37,987   64,196  
Trade accounts receivable and accrued income, fair value 65,167   35,518  
Interest receivable from money-market deposits and bank accounts, fair value 2,207   3,353  
Receivable from IRS derivatives, fair value 116   269  
Trade accounts payable, fair value (39,825)   (123,605)  
Level 1 | Fair value | 2024 Unsecured Bonds        
Non-Derivatives:        
Long-term debt - 2024 Unsecured Bonds, fair value (305,241)   (299,511)  
Level 1 | Fair value | 2025 Senior Unsecured Notes        
Non-Derivatives:        
Long-term debt - 2024 Unsecured Bonds, fair value (506,630)   (481,325)  
Level 2 | Carrying value        
Non-Derivatives:        
Current portion of long-term debt and short-term debt (255,207)   (305,037)  
Long-term debt (1,087,500)   (1,125,000)  
Long-term debt - 2025 Convertible Bonds (575,000)   (575,000)  
Level 2 | Carrying value | Oil and gas derivative        
Derivatives:        
Derivative instrument 8,101   12,726  
Level 2 | Carrying value | Interest rate swap        
Derivatives:        
Derivative instrument 12,141   2,551  
Level 2 | Fair value        
Non-Derivatives:        
Current portion of long-term debt and short-term debt, fair value (255,207)   (305,037)  
Long-term debt, fair value (1,087,500)   (1,125,000)  
Long-term debt - 2025 Convertible Bonds, fair value (652,286)   (555,473)  
Level 2 | Fair value | Oil and gas derivative        
Derivatives:        
Derivative instrument 8,101   12,726  
Level 2 | Fair value | Interest rate swap        
Derivatives:        
Derivative instrument $ 12,141   $ 2,551