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Net (Loss)/Profit Per Share - Summary of shares outstanding were excluded from the calculation of diluted net (loss)/profit per ordinary share (Details) - shares | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Share Option |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 66,708,248 | 204,753,909 | 60,029,916
Restricted Stock |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 3,983,115
Restricted share units |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 20,141,606 | 3,622,413 | 0
Series Pre-A convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 82,811,813
Series A convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 115,015,797
Series A+ convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 54,222,527
Series B convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 120,916,087
Series C convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 186,399,063
Series C+ convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 58,596,160
Series C++ convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 41,542,257
Series D convertible redeemable preferred shares |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Shares issuable upon conversion | 0 | 0 | 177,632,040

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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