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Loss Per Share - Weighted average numbers of ordinary shares outstanding (Details) - shares | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Loss Per Share |  |  |
Weighted average numbers of ordinary shares outstanding | 96,855,134 | 103,450,186 | 236,501,538
Restricted shares |  |  |
Loss Per Share |  |  |
Weighted average numbers of ordinary shares outstanding | 4,051,753 | 1,358,110 |
Outstanding weighted average options granted |  |  |
Loss Per Share |  |  |
Weighted average numbers of ordinary shares outstanding | 55,132,378 | 56,768,907 | 52,558,756
Convertible notes |  |  |
Loss Per Share |  |  |
Weighted average numbers of ordinary shares outstanding | 37,671,003 | 45,323,169 | 183,942,782

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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