NET INCOME (LOSS) PER SHARE - Calculation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income (loss)	$ (207,363)	$ 39,008
Less: Net loss attributable to noncontrolling interests	(3,164)	0
Net income (loss) attributable to common stockholders, basic	(204,199)	39,008
Net income (loss) attributable to common stockholders, diluted	$ (204,199)	$ 39,008
Basic shares:
Weighted-average common shares outstanding (in shares)	541,767	455,414
Weighted-average unvested shares (in shares)	(332)	(441)
Weighted-average shares used to compute basic net income (loss) per share (in shares)	541,435	454,973
Diluted shares:
Stock options, restricted stock, and employee stock purchase plan (in shares)	0	20,972
Convertible senior notes (in shares)	0	322
Common stock warrants (in shares)	0	25,086
Weighted-average shares used to compute diluted net income (loss) per share (in shares)	541,435	501,353
Net income (loss) per share attributable to common stockholders:
Basic (in USD per share)	$ (0.38)	$ 0.09
Diluted (in USD per share)	$ (0.38)	$ 0.08