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Balance Sheet Details - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
At-the-market (“ATM”) receivable | $ 9,414 | $ 0
Prepaid expenses | 9,177 | 6,159
Interest receivable | 8,076 | 3,598
Grant receivable | 394 | 9
Purchased equipment deposits | 345 | 3,856
Other current assets | 1,376 | 2,105
Total | $ 28,782 | $ 15,727

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