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Related Party Transactions - Schedule of Share-Based Payments Issued to BHES (Details) - BHES - Joint Development Agreements - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Expense Recognized |  |  |  |
Stock issued during period, value, issued for services | $ 10,323 | $ 6,228 | $ 18,570 | $ 10,526
Class A Common Stock |  |  |  |
Quantity |  |  |  |
Stock issued during period, shares, issued for services (in shares) | 1,562 | 942 | 2,809 | 1,592
Expense Recognized |  |  |  |
Stock issued during period, value, issued for services | $ 10,323 | $ 6,228 | $ 18,570 | $ 10,526
Class B Common Stock |  |  |  |
Quantity |  |  |  |
Stock issued during period, shares, issued for services (in shares) | 1,562 | 942 | 2,809 | 1,592
Expense Recognized |  |  |  |
Stock issued during period, value, issued for services | $ 0 | $ 0 | $ 0 | $ 0

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