v3.26.1
INTANGIBLE ASSETS, NET - Summary of intangible assets (Detail) - CNY (¥)
Dec. 31, 2025
Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross ¥ 71,492,000 ¥ 39,122,000
Less: Accumulated amortization (18,691,000) (11,307,000)
Accumulated impairment loss (10,413,000) (9,831,000)
Finite-Lived Intangible Assets, Net 42,388,000 17,984,000
Student Base [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 17,910,000 12,510,000
Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 1,675,000 1,675,000
License [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross ¥ 51,907,000 ¥ 24,937,000