v3.26.1
Fair Value Measurement - Fair Value Measurements of Roll Forward In Level 3 Financial Instruments (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value of Level 3 investments, Beginning Balance ¥ 7,755 ¥ 46,782 ¥ 34,368
Addition     12,334
Disposal   (5,000) (298)
Impairment (2,108) (15,025) (1,425)
Effect of currency translation adjustment (79) ¥ (281) ¥ 898
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]   Gain (Loss) on Investments Gain (Loss) on Investments
The change in fair value of the investments   ¥ (18,721) ¥ 905
Fair value of Level 3 investments, Ending Balance 5,568 7,755 46,782
iSNOB Holding Limited      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value of Level 3 investments, Beginning Balance 0 26,021 24,656
Impairment   (8,150)  
Effect of currency translation adjustment   (321) 801
The change in fair value of the investments   (17,550) 564
Fair value of Level 3 investments, Ending Balance 0 0 26,021
Jiangxi Chengqianqihou Food Supply Chain Co., Ltd.      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value of Level 3 investments, Beginning Balance   5,000 5,000
Disposal   (5,000)  
Fair value of Level 3 investments, Ending Balance     5,000
Juesekuangxiang (Shanghai) Technology Co. Ltd.      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value of Level 3 investments, Beginning Balance   6,875  
Addition     6,875
Impairment   (6,875)  
Fair value of Level 3 investments, Ending Balance     6,875
Hangzhou Jimi Biotechnology Co., Ltd.      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value of Level 3 investments, Beginning Balance 5,459 5,459  
Addition     5,459
Impairment (1,827)    
Fair value of Level 3 investments, Ending Balance 3,632 5,459 5,459
Others      
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value of Level 3 investments, Beginning Balance 2,296 3,427 4,712
Disposal     (298)
Impairment (281)   (1,425)
Effect of currency translation adjustment (79) 40 97
The change in fair value of the investments   (1,171) 341
Fair value of Level 3 investments, Ending Balance ¥ 1,936 ¥ 2,296 ¥ 3,427