Share-based Payment - Significant Terms and Conditions of Stock Option Plan (Parenthetical) (Detail) - Maximum [member]	12 Months Ended
Mar. 31, 2023 yr
Disclosure of terms and conditions of share-based payment arrangement [Line Items]
Term of options granted for director, a corporate auditor or an executive officer	30
Term of options granted for director, a corporate auditor or an executive officer who are relieved of their positions	20 years

The option life of share options granted.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_DescriptionOfOptionLifeShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration