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Short-Term and Long-Term Borrowings - Schedule of Debt (Parenthetical) (Detail) - CNY (¥)
¥ in Thousands
1 Months Ended
Apr. 30, 2025
Jul. 31, 2026
Jun. 26, 2026
May 31, 2026
Apr. 19, 2026
Jul. 31, 2025
Jun. 26, 2025
May 31, 2025
Apr. 27, 2025
Apr. 24, 2025
Apr. 19, 2025
Dec. 31, 2024
Jul. 31, 2024
Jun. 26, 2024
May 31, 2024
Apr. 27, 2024
Apr. 24, 2024
Apr. 19, 2024
Dec. 31, 2023
Dec. 27, 2023
Apr. 27, 2023
Apr. 24, 2023
Schedule of Debt [Line Items]                                            
Debt instrument, face amount                         ¥ 10,000 ¥ 10,000 ¥ 75,000     ¥ 43,000   ¥ 100,000 ¥ 80,000 ¥ 50,000
Debt instrument, annual principal payment   ¥ 8,000 ¥ 6,000 ¥ 71,500 ¥ 40,000 ¥ 2,000 ¥ 3,500 ¥ 2,000 ¥ 76,500 ¥ 42,500 ¥ 3,000     ¥ 500 ¥ 1,500 ¥ 2,000 ¥ 5,000       ¥ 1,500 ¥ 2,500
Debt instrument, repurchase amount                       ¥ 500                    
Subsequent Event [Member]                                            
Schedule of Debt [Line Items]                                            
Debt instrument, periodic payment ¥ 3,000                                          
Secured bank loan [Member]                                            
Schedule of Debt [Line Items]                                            
Debt instrument, repurchase amount                       1,500             ¥ 1,500      
Unsecured bank loan [Member]                                            
Schedule of Debt [Line Items]                                            
Debt instrument, repurchase amount                       ¥ 5,000             ¥ 2,500