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Other Balance Sheet Accounts | 3 Months Ended
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Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Other Balance Sheet Accounts | . OTHER BALANCE SHEET ACCOUNTS Prepaid expenses and other current assets are composed of the following (in thousands):
|  | March 31, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Materials and supplies |  | $ | 23,967 |  |  | $ | 18,658 |
Prepaid expenses |  |  | 4,452 |  |  |  | 4,890 |
Accrued interest receivable |  |  | 4,151 |  |  |  | 2,221 |
Other current assets |  |  | 6,657 |  |  |  | 2,556 |
Total prepaid expenses and other current assets |  | $ | 39,227 |  |  | $ | 28,325 |
Accrued expenses and other current liabilities are composed of the following (in thousands):
|  | March 31, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Accrued salaries and other payroll liabilities |  | $ | 8,741 |  |  | $ | 10,368 |
Accrued professional services |  |  | 6,638 |  |  |  | 936 |
Acquisition holdback liabilities |  |  | 4,950 |  |  |  | 3,300 |
Accrued equipment and services liabilities for research and development |  |  | 785 |  |  |  | 534 |
Accrued expenses—other |  |  | 2,481 |  |  |  | 1,286 |
Total accrued expenses and other current liabilities |  | $ | 23,595 |  |  | $ | 16,424 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/210/tableOfContent + Details
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