Related party transactions - Summary of Compensation for Key Management Personnel (Detail) - JPY (¥) ¥ in Millions |
12 Months Ended | ||
---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
Disclosure Of Key Management Personnel Compensation [Abstract] | |||
Short-term employee benefits | ¥ 1,657 | ¥ 1,660 | ¥ 1,831 |
Stock-based compensation | 4,431 | 2,917 | 1,928 |
Total | ¥ 6,088 | ¥ 4,577 | ¥ 3,759 |