Stock-based compensation plans - Summary of the restricted stock unit plan during the fiscal years (Detail) - Restricted share units [member] - shares |
12 Months Ended | ||
---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
Disclosure of terms and conditions of share-based payment arrangement [line items] | |||
Outstanding at beginning of the fiscal year | 8,255,925 | 2,443,150 | |
Granted | 10,215,944 | 6,913,640 | 2,499,210 |
Vesting | 2,746,775 | 757,040 | |
Forfeited | 635,243 | 343,825 | 56,060 |
Outstanding at end of the fiscal year | 15,089,851 | 8,255,925 | 2,443,150 |