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Financial risk management -Additional information (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Financial Risk Management [Line Items]
Borrowings With Floating Interest Rates	42.00%	69.00%
Undrawn Borrowing Facilities	$ 13	$ 13

X

- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2022-03-24
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard
-URIDate 2022-03-24

+ Details

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X

- Definition

The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2022-03-24
-Paragraph 50
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_50_a&doctype=Standard
-URIDate 2022-03-24

+ Details

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Period Type:	instant

X

- Definition

Disclosure of financial risk management.

+ References

No definition available.

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