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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Cash flows from operating activities:    
Net loss before income tax $ (1,615,439) $ (65,662)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation, amortization, and accretion 58,936 60,289
Impairment and other charges 1,511,735 0
Non-cash income (1,683) (2,046)
Deferred taxes (2,404) (11,137)
Change in fair value of Earnout Shares liability and Warrant liability (66,257) (29,361)
Change in Tax Receivable Agreement liability (21,317) 0
Share-based compensation expense 35,759 23,795
Changes in operating assets and liabilities:    
Accounts receivable, net 0 58
Interest receivable 3,336 113
Prepaid expenses and other current assets (953) (721)
Other long-term assets (42) (583)
Accounts payable (1,778) 3,024
Accrued liabilities 5,442 3,289
Due to related parties 1,685 262
Net cash used in operating activities (92,980) (18,680)
Cash flows from investing activities:    
Purchases of available-for-sale securities (156,416) (131,564)
Maturities of available-for-sale securities 65,845 42,250
Maturities of short-term investments 100,000 0
Capitalized software (1,035) (592)
Purchase of property, plant and equipment (15,129) (39,561)
Net cash used in investing activities (6,735) (129,467)
Cash flows from financing activities:    
Issuance of Class A Common Stock, including exercise of Warrants 157 8
Payment of income taxes on vested share-based payment awards (172) (99)
Payments on finance lease obligations (149) 0
Net cash used in financing activities (164) (91)
Net decrease in cash, cash equivalents, and restricted cash (99,879) (148,238)
Cash, cash equivalents, and restricted cash, beginning of period 331,676 536,927
Cash, cash equivalents, and restricted cash, end of period 231,797 388,689
Supplemental non-cash investing and financing activities:    
Change in accruals for capital expenditures (1,609) 3,826
Tax-related partnership distribution 0 4,130
Operating lease right-of use asset acquired 1,591 897
Finance lease right-of-use asset acquired 0 349
Reconciliation of cash, cash equivalents, and restricted cash to the consolidated balance sheet:    
Cash and cash equivalents 229,315 386,257
Restricted cash 2,482 2,432
Total cash, cash equivalents, and restricted cash $ 231,797 $ 388,689