v3.25.4
Commitments and Contingencies - Narrative (Details)
$ in Thousands, $ in Millions
 3 Months Ended 6 Months Ended
Dec. 31, 2025
AUD ($)
Dec. 31, 2025
AUD ($)
Dec. 31, 2025
USD ($)
well
license
Dec. 31, 2025
AUD ($)
well
license
Jun. 30, 2025
USD ($)
Dec. 19, 2024
AUD ($)
bondFacility
Other Commitments [Line Items]            
Number of potential additional performance bond facilities | bondFacility           2
Unamortized debt issuance expense       $ 0.6    
Amortization of debt issuance costs $ 0.1 $ 0.1        
APA Group (APA) | Development Agreement ("DA")            
Other Commitments [Line Items]            
Guarantor obligation, construction costs covered by bank guarantees, percentage     67.00% 67.00%    
APA Group (APA) | Development Agreement ("DA") | Financial Guarantee            
Other Commitments [Line Items]            
Guarantor obligations, current carrying value       $ 27.4    
Letter of credit, facility A | Macquarie Bank Limited (“Macquarie”)            
Other Commitments [Line Items]            
Line of credit facility, maximum borrowing capacity           $ 25.0
Letters of credit outstanding, amount       32.2    
Line of credit facility, remaining borrowing capacity       $ 1.7    
Letter of credit, facility B | Macquarie Bank Limited (“Macquarie”)            
Other Commitments [Line Items]            
Line of credit facility, maximum borrowing capacity           5.0
Line of credit facility, conditions to issue stock, value, new issues           62.5
Letter of credit, facility C | Macquarie Bank Limited (“Macquarie”)            
Other Commitments [Line Items]            
Line of credit facility, maximum borrowing capacity           5.0
Line of credit facility, conditions to issue stock, value, new issues           75.0
Letter of credit facility A, B and C | Macquarie Bank Limited (“Macquarie”)            
Other Commitments [Line Items]            
Line of credit facility, current borrowing capacity           $ 35.0
Letter of credit | Line of credit            
Other Commitments [Line Items]            
Interest rate, stated percentage     12.00% 12.00%    
Letter of credit | Macquarie Bank Limited (“Macquarie”)            
Other Commitments [Line Items]            
Line of credit facility, covenants, minimum liquidity       $ 20.0    
Line of credit facility, covenants, minimum current ratio     100.00% 100.00%    
Line of credit facility, establishment fee   $ 0.5        
Line of credit, drawdown fee percentage   10.00%        
Line of credit facility, commitment fee percentage   4.00%        
Letter of credit, facility B and C | Macquarie Bank Limited (“Macquarie”)            
Other Commitments [Line Items]            
Line of credit facility, remaining borrowing capacity       $ 1.1    
Sweetpea            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     $ 23,327   $ 23,115  
Number of licenses | license     2 2    
Sweetpea | EP 136            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     $ 14,000      
Extension of permit period   18 months        
Sweetpea | EP 143            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     9,300      
EP 161            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     5,848   2,302  
Beetaloo Joint Venture            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     $ 76,609   75,630  
Number of wells | well     4 4    
Beetaloo Joint Venture | EP 76            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     $ 10,700      
Beetaloo Joint Venture | EP 98            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     54,200      
Beetaloo Joint Venture | EP 117            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     11,700      
Midstream            
Other Commitments [Line Items]            
Committed at the reporting date but not recognized as liabilities, payable:     $ 12,116   $ 9,056