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Discontinued Operation - Summary of Assets and Liabilities of Discontinued Operation (Detail) - 12 months ended Dec. 31, 2017 - Darlot [Member] $ in Millions, $ in Millions	USD ($)	AUD ($)	AUD ($)
Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]
Property, plant and equipment	$ 3.3		$ 4.3
Inventories	7.2		9.4
Trade and other receivables	0.1		0.1
Trade and other payables	(8.7)		(11.3)
Environmental rehabilitation costs provision	(12.9)		(16.9)
Net liabilities	(11.0)		$ (14.4)
Total consideration received less costs to sell	12.5	$ 16.4
Gain on sale of discontinued operations	$ 23.5	$ 30.8

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- Definition

Disclosure Of Noncurrent Assets Held For Sale And Discontinued Operations [line items]

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- Definition

Environmental rehabilitation liability discontinued operations.

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- Definition

Inventories discontinued operations

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- Definition

Net Assets Liabilities Of Discontinued Operations.

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- Definition

Property, plant and equipment discontinued operations

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- Definition

Trade and other payables discontinued operations.

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- Definition

Trade and other receivables discontinued operations.

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- Definition

The gain (loss) recognised on the measurement to fair value less costs to sell or on the disposal of the assets or disposal group(s) constituting the discontinued operation. [Refer: Discontinued operations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 5
-IssueDate 2019-01-01
-Paragraph 33
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2019-en-r&anchor=para_33_b_iii&doctype=Standard
-URIDate 2019-03-27

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