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Taxation - Schedule of Tax effects of temporary differences that give rise to the deferred tax asset (Detail) - CNY (¥)
¥ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets    
Net accumulated losses-carry forward ¥ 452,178 ¥ 522,038
Accounts receivables allowance 259 325
Fair value change of long-term investment 4,141 1,972
Total deferred tax assets 456,578 524,335
Less: valuation allowance (456,578) (521,462)
Total deferred tax assets, net of valuation allowance 0 2,873
Amounts offset by deferred tax liabilities 0 (2,873)
Total deferred tax assets, net 0 0
Deferred tax liabilities    
Intangible assets, net 0 1,909
Prepaid expenses 0 964
Total deferred tax liabilities 0 2,873
Amounts offset by deferred tax assets 0 (2,873)
Total deferred tax liabilities, net ¥ 0 ¥ 0