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Net income (loss) per share
 12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Net income (loss) per share Net income (loss) per share
We present net income (loss) per share using the two-class method required for multiple classes of common stock. Holders of our Class A and Class B common stock have identical rights except with respect to voting, conversion and transfer rights and therefore share equally in our net income or losses.
We calculate basic net income (loss) per share by dividing net income (loss) by the weighted-average number of shares of common stock outstanding during the period.
Diluted net income (loss) per share gives effect to all potential shares of common stock, including stock options, RSAs and RSUs to the extent these are dilutive. The calculation of diluted net income (loss) of Class A common stock assumes the conversion of our Class B common stock to Class A common stock, while the diluted net income (loss) of Class B common stock does not assume the conversion of those shares to Class A common stock.
We calculated basic and diluted net income (loss) per share as follows (in thousands, except per share amounts):
Year Ended December 31,
202320222021
Class AClass BClass AClass BClass AClass B
Basic net income (loss) per share:
Numerator:
Net income (loss)$(30,937)$(4,673)$(83,110)$(12,937)$274,699 $41,739 
Denominator:
Basic weighted-average shares used in computing net income (loss) per share
586,109 88,532 576,061 89,671 555,608 84,422 
Basic net income (loss) per share$(0.05)$(0.05)$(0.14)$(0.14)$0.49 $0.49 
Diluted net income (loss) per share:






Numerator:
Net income (loss)$(30,937)$(4,673)$(83,110)$(12,937)$274,699 $41,739 
Reallocation of net income as a result of conversion of Class B to Class A common stock
— — — — 41,739 — 
Reallocation of net income to Class B common stock
— — — — — (3,115)
Diluted net income (loss)
$(30,937)$(4,673)$(83,110)$(12,937)$316,438 $38,624 
Denominator:
Basic weighted-average shares used in computing net income (loss) per share
586,109 88,532 576,061 89,671 555,608 84,422 
Conversion of Class B to Class A common stock
— — — — 84,422 — 
Weighted average effect of dilutive potential common stock
— — — — 51,621 — 
Diluted weighted-average shares used in computing net income (loss) per share
586,109 88,532 576,061 89,671 691,651 84,422 
Diluted net income (loss) per share$(0.05)$(0.05)$(0.14)$(0.14)$0.46 $0.46 
Basic net loss per share is the same as diluted net loss per share for the periods we reported net losses. We excluded the following weighted-average potential shares of common stock from our calculation of diluted net income (loss) per share because these would be anti-dilutive (in thousands):
Year Ended December 31,
202320222021
Outstanding stock options14,463 17,405 — 
Unvested restricted stock units and restricted stock awards53,228 52,256 3,271 
Total
67,691 69,661 3,271