Share-based Payment - Summary of Restricted Share (Detail) - Restricted Shares [member] |
12 Months Ended | |||
|---|---|---|---|---|
|
Mar. 31, 2026
JPY (¥)
|
Mar. 31, 2025
JPY (¥)
|
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| Disclosure of terms and conditions of share-based payment arrangement [Line Items] | ||||
| Outstanding at beginning of period | [1] | 3,748,518 | 3,362,025 | |
| Allotted | [1] | 513,282 | 1,025,706 | |
| Released | [1] | (565,801) | (639,213) | |
| Forfeited | [1] | (4,775) | ||
| Outstanding at end of period | [1] | 3,691,224 | 3,748,518 | |
| Fair value at measurement date | [1] | ¥ 3,614 | ¥ 3,748 | |
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