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Financial instruments - Summary of foreign currency risk sensitivity (Detail) - Foreign currency risk [member] - AUD ($) $ in Thousands	Jun. 30, 2025	Jun. 30, 2024
US dollars [member]
Disclosure of detailed information about financial instruments [line items]
% change	10.00%	10.00%
Increase in market risk [member] | US dollars [member]
Disclosure of detailed information about financial instruments [line items]
% change	10.00%	10.00%
Increase in market risk [member] | Euros [member]
Disclosure of detailed information about financial instruments [line items]
% change	10.00%	10.00%
Increase in market risk [member] | GBP [Member]
Disclosure of detailed information about financial instruments [line items]
% change	10.00%	10.00%
Effect of increase in market risk on profit (loss) before tax [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	$ (840)	$ (1,143)
Effect of increase in market risk on profit (loss) before tax [member] | US dollars [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	(165)	(409)
Effect of increase in market risk on profit (loss) before tax [member] | Euros [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	(674)	(732)
Effect of increase in market risk on profit (loss) before tax [member] | GBP [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	(1)	(2)
Effect of increase in market risk on equity [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	(840)	(1,143)
Effect of increase in market risk on equity [member] | US dollars [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	(165)	(409)
Effect of increase in market risk on equity [member] | Euros [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	(674)	(732)
Effect of increase in market risk on equity [member] | GBP [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	$ (1)	$ (2)
Decrease in market risk [member] | US dollars [member]
Disclosure of detailed information about financial instruments [line items]
% change	(10.00%)	(10.00%)
Decrease in market risk [member] | Euros [member]
Disclosure of detailed information about financial instruments [line items]
% change	(10.00%)	(10.00%)
Decrease in market risk [member] | GBP [Member]
Disclosure of detailed information about financial instruments [line items]
% change	(10.00%)	(10.00%)
Effect of decrease in market risk on profit (loss) before tax [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	$ 840	$ 1,143
Effect of decrease in market risk on profit (loss) before tax [member] | US dollars [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	165	409
Effect of decrease in market risk on profit (loss) before tax [member] | Euros [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	674	732
Effect of decrease in market risk on profit (loss) before tax [member] | GBP [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	1	2
Effect of decrease in market risk on equity [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	840	1,143
Effect of decrease in market risk on equity [member] | US dollars [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	165	409
Effect of decrease in market risk on equity [member] | Euros [member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	674	732
Effect of decrease in market risk on equity [member] | GBP [Member]
Disclosure of detailed information about financial instruments [line items]
Effect on profit before tax/equity	$ 1	$ 2

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- Definition

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

+ References

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- Definition

The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Classes of financial instruments [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph B8
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_B8_c&doctype=Appendix&subtype=B
-URIDate 2025-03-27

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- Definition

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