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Net Loss Per Share (Details) - Schedule of computation of basic and diluted net loss per share - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Numerator: |  |  |  |  |  |  |
Net loss attributable to ordinary shareholders | $ (120,003) | $ (21,944) | $ (187,464) | $ (64,557) | $ (80,963) | $ (115,479) | $ (100,033)
Denominator: |  |  |  |  |  |  |
Weighted average ordinary shares outstanding used in computing basic and diluted net loss per share | 243,861,780 | 99,028,297 | 147,836,650 | 99,028,297 | 99,028,297 | 99,028,297 | 99,028,297
Basic and diluted net loss per share | $ (0.49) | $ (0.22) | $ (1.27) | $ (0.65) | $ (0.82) | $ (1.17) | $ (1.01)

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- Definition Net Income Loss Available To Common Stockholders. + References No definition available. + Details
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256 + Details
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). + References No definition available. + Details
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