Taxation - Schedule of Movement of Valuation Allowance (Detail) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
|
| Income Tax Disclosure [Abstract] | |||
| Balance at beginning of the period | ¥ 458,960 | ¥ 468,587 | ¥ 465,703 |
| Addition | 20,422 | 1,653 | 10,298 |
| Effect of change on tax rate | 865 | 3,710 | 30,001 |
| Written off for expiration of net operating losses | (23,864) | (4,371) | (20,022) |
| Utilization of previously unrecognized tax loss and un-deductible advertising expenses | (16,139) | (10,619) | (17,393) |
| Balance at end of the period | ¥ 440,244 | ¥ 458,960 | ¥ 468,587 |