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Events after the balance sheet date (Details) - Energy Resources of Australia Ltd [Member] - Ordinary [Member]		12 Months Ended
	Feb. 20, 2020	Dec. 31, 2019
Disclosure of non-adjusting events after reporting period [line items]
Proportion of class held (%)		68.39%
Major ordinary share transactions [member]
Disclosure of non-adjusting events after reporting period [line items]
Proportion of class held (%)	86.33%

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The proportion of the voting rights in a subsidiary held by the entity. [Refer: Subsidiaries [member]]

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