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Employees - Summary of Employees (Detail) - Employees | 12 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 31,589 | 28,926 | 27,161
Continuing operation [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 31,589 | 28,926 | 26,510
Continuing operation [member] | Australia [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 20,967 | 18,146 | 16,504
Continuing operation [member] | South America [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 7,330 | 6,979 | 6,729
Continuing operation [member] | North America [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 1,296 | 1,999 | 1,839
Continuing operation [member] | Asia [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 1,939 | 1,743 | 1,368
Continuing operation [member] | Europe [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees | 57 | 59 | 70
Discontinued operations [member] |  |  |
Disclosure of average number of employees [line items] |  |  |
Average number of employees |  |  | 651

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