Earnings Per Share - Additional Information (Detail) - shares	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Earnings per share [abstract]
Effect of dilutive shares	11,000,000	10,000,000	9,000,000
Antidilutive shares	0	0	0

The potential dilutive effect on the weighted average number of ordinary shares that relate to the assumed exercise of the entity's share options.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 33
-IssueDate 2025-01-01
-Paragraph 70
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2025-en-r&anchor=para_70_b&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration