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Net Loss Per Share Attributable to Common Stockholders | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Net Loss Per Share Attributable to Common Stockholders | 16. Net Loss Per Share Attributable to Common Stockholders The Company computes net loss per share under the two-class method required for multiple classes of common stock and participating securities (convertible preferred stock). The rights, including the liquidation and dividend rights, of the Class A common stock, Class B common stock and Class C common stock are substantially identical, other than voting rights. Accordingly, the net loss per share attributable to common stockholders will be the same for Class A common stock, Class B common stock and Class C common stock on an individual or combined basis. The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders (in millions, except share and per share amounts):
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to common stockholders |  | $ | (494.1 | ) |  | $ | (270.2 | ) |  | $ | (388.0 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted |  |  | 326,336,128 |  |  |  | 109,954,760 |  |  |  | 106,529,880 |
Net loss per share attributable to common stockholders, basic and diluted |  | $ | (1.51 | ) |  | $ | (2.46 | ) |  | $ | (3.64 | )
The following participating securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been anti-dilutive (on an as-converted basis):
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Convertible preferred stock |  |  | — |  |  |  | 238,954,050 |  |  |  | 248,271,850 |
Outstanding stock options |  |  | 54,525,539 |  |  |  | 62,827,150 |  |  |  | 43,776,850 |
Outstanding RSUs |  |  | 54,517,930 |  |  |  | 32,556,160 |  |  |  | 5,297,200 |
Unvested early exercised options |  |  | 1,068,300 |  |  |  | 1,075,710 |  |  |  | — |
Unvested common stock |  |  | 391,092 |  |  |  | 640,320 |  |  |  | 1,097,880 |
Total |  |  | 110,502,861 |  |  |  | 336,053,390 |  |  |  | 298,443,780 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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