Basic net income (loss) per share is computed by dividing the net income (loss) by the weighted-average number of shares of common stock outstanding during the period. Diluted net income per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding adjusted for the dilutive effect of all potential shares of common stock. In periods when the Company reported a net loss, diluted net loss per share is the same as basic net loss per share because the effects of potentially dilutive items were anti-dilutive.


	Year Ended December 31,
	2023		2022		2021
Numerator:
Net income (loss)	$	(21,124)	$	(553,005)	$	158,826
Less: Net loss attributable to noncontrolling interests	(30,896)		(12,258)		(7,458)
Net income (loss) attributable to common stockholders	$	9,772	$	(540,747)	$	166,284
Denominator:
Basic shares:


Weighted-average shares used to compute basic net income (loss) per share	608,856		578,949		458,432
Diluted shares:
Stock options, restricted stock, and employee stock purchase plan	5,168		—		17,849
Convertible notes	—		—		408
Common stock warrants	—		—		25,090
Weighted-average shares used to compute diluted net income (loss) per share	614,024		578,949		501,779

Net income (loss) per share attributable to common stockholders:
Basic	$	0.02	$	(0.93)	$	0.36
Diluted	$	0.02	$	(0.93)	$	0.33

The following potential common shares were excluded from the calculation of diluted net income per share because their effect would have been anti-dilutive for the periods presented (in thousands):


	Year Ended December 31,
	2023	2022	2021
Stock options, restricted stock, and employee stock purchase plan	40,431	32,185	7,680
Convertible notes	14,297	18,029	23,947
Common stock warrants	20,243	33,699	17,271
Total anti-dilutive securities	74,971	83,913	48,898