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Share based compensation - Narrative (Details) $ / shares in Units, ¥ in Thousands, $ in Thousands | 1 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 30, 2024 shares | Feb. 29, 2024 shares | Jun. 30, 2024 CNY (¥) $ / shares shares | Jun. 30, 2023 | Jun. 30, 2024 USD ($)
Share based compensation |  |  |  |  |
Nonvested (in shares) | ¥ |  |  | ¥ 22,449 |  |
Weighted-average period |  |  | 1 year 2 months 12 days |  |
Share Incentive Plan, 2022 |  |  |  |  |
Share based compensation |  |  |  |  |
Aggregate number of share options granted (in shares) | 4,960,570 |  |  |  |
Service period | 12 months |  |  |  |
Share Incentive Plan, 2022 | After the completion of a qualified IPO |  |  |  |  |
Share based compensation |  |  |  |  |
Vesting percentage | 25.00% |  |  |  |
Share Incentive Plan, 2022 | RSU |  |  |  |  |
Share based compensation |  |  |  |  |
Shares vested (in shares) |  | 117,250 |  |  |
Aggregate number of shares granted (in shares) |  | 117,250 |  |  |
2021 Option Plan |  |  |  |  |
Share based compensation |  |  |  |  |
Aggregate number of share options granted (in shares) |  |  | 4,960,570,000 |  |
Exercise price per share (in USD per share) | $ / shares |  |  | ¥ 0.50 |  |
Expected dividend yield |  |  | 0.00% | 0.00% |
Total unrecognized compensation expense |  |  | ¥ 66,196 |  | $ 9,290

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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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