Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net loss before allocation to noncontrolling interest	$ (199,531)	$ (171,154)
Adjustments to reconcile net loss before noncontrolling interest to cash used in operating activities:
Depreciation and amortization	22,678	40,336
Amortization of debt issuance costs	721	1,901
Loss on disposal of property and equipment	0	2,221
Loss on remeasurement of warrant liabilities	68,238	47,926
Stock-based compensation	18,351	13,807
Paid-in-kind ("PIK") interest expense	497	2,959
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(1,982)	(10,128)
Accounts payable and accrued expenses	20,675	(14,873)
Operating lease right-of-use assets and operating lease liabilities	(59)	(21)
Contract liabilities	1,086	21,780
Other assets and liabilities	(2,698)	972
Net cash used in operating activities	(72,024)	(64,274)
Cash flows from investing activities:
Purchase of property and equipment	(430,622)	(61,770)
Net cash used in investing activities	(430,622)	(61,770)
Cash flows from financing activities:
Proceeds from debt	473,498	145,000
Repayments of debt	(926)	(124)
Payment for debt issuance costs	(6,516)	(5,162)
Proceeds from issuance of common stock	462,776	189,921
Payments for third party equity issuance costs	(9,843)	(2,757)
Issuance of equity under employee stock plan	7,193	105
Employee taxes paid for stock-based compensation awards	(6,027)	(1,240)
Purchase of capped call transactions	(44,528)	0
Net cash provided by financing activities	875,627	325,743
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(1,115)	(229)
Net increase in cash, cash equivalents and restricted cash	371,866	199,470
Cash, cash equivalents and restricted cash, beginning of period	567,534	88,097
Cash, cash equivalents and restricted cash, end of period	939,400	287,567
Non-cash activities:
Right-of-use assets obtained in exchange for operating lease liabilities	1,505	0
Purchases of property and equipment in accounts payable and accrued expenses	22,155	8,073
PIK interest paid through issuance of PIK notes	497	2,959
Deferred asset acquisition costs paid by issuance of penny warrants	121,156	0
2034 Convertible Notes settled by issuance of Class A Common Stock	139,620	0
Interest	813	4,422
Income taxes, net	$ 1,323	$ 902