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Principal Accounting Policies - Schedule of Changes in Deferred Revenue (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Deferred Revenue [Abstract]      
Balance at beginning of the year ¥ 247,437 ¥ 228,356 ¥ 203,698
Additions to deferred revenue 332,819 443,097 455,294
Recognition of deferred revenue (331,190) (424,016) (430,636)
Deconsolidation of CEIBS Publishing Group (65,928)    
Balance at end of the year ¥ 183,138 ¥ 247,437 ¥ 228,356