v3.25.3
Related Party Transactions - Transactions with Related Parties (Details)
$ in Thousands
 12 Months Ended
Jan. 09, 2021
t
$ / t
Jun. 30, 2025
AUD ($)
Jun. 30, 2024
AUD ($)
Purchase agreement [Abstract]      
Annual supply percentage 0.50    
Quantity of product supplied | t 113,000    
Concentration of lithium oxide 0.06    
Spodumene concentrate minimum price per tonne | $ / t 500    
Spodumene concentrate maximum price per tonne | $ / t 900    
Associate [Member]      
Transactions with Related Parties [Abstract]      
Sales of goods and services   $ 0 $ 0
Purchases of goods and services   (329) 0
Net increase (decrease) in other amounts owing with related parties   0 127
Proceeds from related parties (excluding sales of goods and services)   0 0
Outstanding Balances with Related Parties [Abstract]      
Sales of goods and services   0 0
Purchases of goods and services   (81) 0
Net increase (decrease) in other amounts owing with related parties   0 (44)
Joint Venture [Member]      
Transactions with Related Parties [Abstract]      
Sales of goods and services   150,278 90,743
Purchases of goods and services   0 0
Net increase (decrease) in other amounts owing with related parties   0 0
Proceeds from related parties (excluding sales of goods and services)   10,374 24,420
Outstanding Balances with Related Parties [Abstract]      
Sales of goods and services   13,984 6,100
Purchases of goods and services   (670) 0
Net increase (decrease) in other amounts owing with related parties   $ 0 $ (658)