Other Income, Net - Summary of Other Income, Net (Parenthetical) (Detail) ¥ in Thousands, $ in Thousands |
12 Months Ended | 60 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Mar. 31, 2026
CNY (¥)
|
Mar. 31, 2025
CNY (¥)
|
Mar. 31, 2024
CNY (¥)
|
Jan. 01, 2024 |
Jan. 31, 2019
USD ($)
|
Jan. 31, 2019
CNY (¥)
|
|
| Other Income and Expenses [Abstract] | ||||||
| Initial reimbursement payment received | $ 935 | ¥ 6,297 | ||||
| Initial reimbursement payment, arrangement period | 5 years | |||||
| Initial reimbursement payment, recorded in other gains | ¥ 0 | ¥ 0 | ¥ 997 | |||
| Reimbursement payment received | ¥ 0 | ¥ 0 | ¥ 0 | |||