Taxation - Schedule of Movement of Valuation Allowance (Detail) - CNY (¥) ¥ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Income Tax Disclosure [Abstract] | |||
| Balance at beginning of the period | ¥ 440,244 | ¥ 458,960 | ¥ 468,587 |
| Addition | 12,152 | 20,422 | 1,653 |
| Deconsolidation | (1,302) | 0 | 0 |
| Change on tax rate | (53,680) | 865 | 3,710 |
| Written off for expiration of net operating losses | (19,546) | (23,864) | (4,371) |
| Utilization of previously unrecognized tax loss and un-deductible advertising expenses | (3,128) | (16,139) | (10,619) |
| Balance at end of the period | ¥ 374,740 | ¥ 440,244 | ¥ 458,960 |