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Auditor's Remuneration - Summary of Auditors' Remuneration (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Auditors remuneration [line items]      
Total assurance services $ 14,050 $ 20,292 $ 15,513
Other services 180    
Total other services 180    
Total fees 14,230 20,292 15,513
Parent [member]      
Auditors remuneration [line items]      
Total assurance services 9,700 9,816 10,642
Subsidiaries, joint ventures and associates [member]      
Auditors remuneration [line items]      
Total assurance services 551 605 1,234
Audit-related assurance services required by legislation to be provided by the auditor [Member]      
Auditors remuneration [line items]      
Total assurance services 1,808 1,933 1,770
Other assurance and agreed-upon procedures under legislation or contractual arrangements [Member]      
Auditors remuneration [line items]      
Total assurance services $ 1,991 $ 7,938 $ 1,867