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Equity - contributed equity - Summary of equity - contributed equity (Detail) - AUD ($)
Jun. 30, 2022
Jun. 30, 2021
Sep. 10, 2016
Disclosure of classes of share capital [abstract]      
Ordinary shares - fully paid, shares 138,755,376 132,012,209 20,000,000
Ordinary shares - fully paid $ 84,480,249 $ 80,290,062