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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Taxes |
Summary of current and deferred components of income tax expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2022 |  | 2023 |  | 2024
​ | ​ | RMB | ​ | RMB | ​ | RMB
Current income tax |  | 1,150 |  | 2,697 |  | 1,665
Deferred income tax |  | 21,826 |  | (2,142) |  | 8,042
Income tax expense |  | 22,976 |  | 555 |  | 9,707
Summary of reconciliation between the income tax (benefit)/expense computed by applying the EIT tax rate to (loss)/profit before income tax and income tax expense/(benefit) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the Year ended December 31,
​ |  | 2022 |  | 2023 |  | 2024
​ | ​ | RMB | ​ | RMB | ​ | RMB
Profit before income tax | ​ | 630,693 | ​ | 164,240 | ​ | 360,590
Tax benefit at EIT tax rate of 25%(1) | ​ | 157,673 | ​ | 41,044 | ​ | 90,148
Expenses not deductible for tax purposes |  | 23,294 | ​ | 108 | ​ | 634
Research and development super deduction |  | (43,017) | ​ | (55,169) | ​ | (42,866)
Effect of different tax rates of subsidiaries operating in other jurisdictions |  | 3,192 | ​ | 5,653 | ​ | (17,080)
Effect of PRC preferential tax rates |  | (46) | ​ | 25,534 | ​ | 13,091
Changes in valuation allowance |  | (118,120) | ​ | (16,615) | ​ | (34,220)
Income tax expense |  | 22,976 | ​ | 555 | ​ | 9,707
(1) | The Group’s major operations during the years ended December 31, 2022, 2023 and 2024 were conducted in PRC. Accordingly, the Group prepared its tax rate reconciliation starting with the PRC statutory tax rate during the years ended December 31, 2022, 2023 and 2024.
Summary of deferred tax assets and deferred tax liabilities | ​
​ | ​ | ​ | ​ | ​
​ |  | As of December 31,
​ |  | 2023 |  | 2024
​ | ​ | RMB | ​ | RMB
Deferred tax assets | ​ |  |  |
Deductible advertising expenses exceeding the tax limit(2) | ​ | 6,988 |  | 2,268
Accrued expenses | ​ | 54,496 |  | 55,012
Other deductible expenses exceeding the tax limit(2) | ​ | — |  | 78
Provisions for the doubtful accounts | ​ | 16,212 |  | 19,117
Operating loss carry forward | ​ | 472,608 |  | 455,358
Less: valuation allowances | ​ | (378,851) |  | (358,569)
Total deferred tax assets | ​ | 171,453 |  | 173,264
​ | ​ | ​ | ​ | ​
Deferred tax liabilities | ​ |  |  | ​
Intangible assets | ​ | 43,801 |  | 37,734
Contract assets | ​ | 176,767 |  | 192,687
Total deferred tax liabilities | ​ | 220,568 |  | 230,421
​
​ | ​ | ​ | ​ | ​
​ |  | As of December 31,
​ |  | 2023 |  | 2024
​ | ​ | RMB | ​ | RMB
Classification in the consolidated balance sheets: | ​ |  |  |
Deferred tax assets | ​ | 24,190 |  | 27,028
Deferred tax liabilities | ​ | 73,305 |  | 84,185
(2) | Deferred income tax assets are recognized for advertising expenses and other deductible expenses that exceeds the tax deduction limit in a particular tax year to the extent that the realization of the related tax benefits through future taxable income is probable. Advertising expenses carry-forwards are permanently available for use by the Group. Other deductible expenses (mainly charitable donations) carry forwards generally expire within 3 years.
Summary of valuation allowance | ​
​ | ​ | ​ | ​ | ​
​ |  | As of December 31,
​ |  | 2023 |  | 2024
​ | ​ | RMB | ​ | RMB
Balance at the beginning of the year | ​ | 378,815 |  | 378,851
Additions | ​ | 47,941 |  | 54,097
Reversals | ​ | (47,905) |  | (74,379)
Balance at end of the year | ​ | 378,851 |  | 358,569

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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