NET LOSS PER SHARE - Schedule of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share [Abstract]
Net loss	$ (366,171)	$ (680,859)
Accretion of redeemable convertible preferred stock (related party)	(364,925)	(3,901)
Net loss attributable to common stockholders, basic	(731,096)	(684,760)
Net loss attributable to common stockholders, diluted	$ (731,096)	$ (684,760)
Weighted-average shares outstanding attributable to common stockholders, basic (in shares)	3,036,317,307	2,301,870,644
Weighted-average shares outstanding attributable to common stockholders, diluted (in shares)	3,036,317,307	2,301,870,644
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.24)	$ (0.30)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.24)	$ (0.30)