Income Taxes - Components of Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Components of loss before income taxes and income tax (expense) benefit
Loss before income taxes	$ (2,107,591)	$ (1,376,197)	$ (723,169)
Income tax benefit/(expense)	2,686	7,364	(839)
Net loss	(2,104,905)	(1,368,833)	(724,008)
Significant components of current and deferred income tax expense (benefit)
Current income tax (benefit) expense	469	1,170	668
Deferred tax (benefit)/expense	(215,030)	(103,372)	(35,737)
Net operating loss carryforward generated	(202,838)	(163,827)	(87,698)
Valuation allowance increase/(decrease)	414,713	258,665	123,606
(Benefit)/expense for income taxes	(2,686)	(7,364)	839
U.S.
Components of loss before income taxes and income tax (expense) benefit
Loss before income taxes	(1,956,615)	(1,211,796)	(697,342)
Income tax benefit/(expense)		29	868
Net loss	(1,956,615)	(1,211,767)	(696,474)
Significant components of current and deferred income tax expense (benefit)
Deferred tax (benefit)/expense	(206,649)	(100,754)	(42,705)
Net operating loss carryforward generated	(194,386)	(146,174)	(92,030)
Valuation allowance increase/(decrease)	401,035	246,899	133,867
(Benefit)/expense for income taxes		(29)	(868)
Foreign
Components of loss before income taxes and income tax (expense) benefit
Loss before income taxes	(150,976)	(164,401)	(25,827)
Income tax benefit/(expense)	2,686	7,335	(1,707)
Net loss	(148,290)	(157,066)	(27,534)
Significant components of current and deferred income tax expense (benefit)
Current income tax (benefit) expense	469	1,170	668
Deferred tax (benefit)/expense	(8,381)	(2,618)	6,968
Net operating loss carryforward generated	(8,452)	(17,653)	4,332
Valuation allowance increase/(decrease)	13,678	11,766	(10,261)
(Benefit)/expense for income taxes	$ (2,686)	$ (7,335)	$ 1,707