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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
--- | --- | --- | ---
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) |  |  |

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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 (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares. + References No definition available. + 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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