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Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2025
Accounting Policies [Abstract] |
Schedule of financial assets and liabilities measured at fair value on a recurring basis | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total
March 31, 2025 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents in money market funds (Note 5) | $ | 49,611 | ​ | $ | — | ​ | $ | — | ​ | $ | 49,611
U.S. treasury securities | ​ | 182,472 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 182,472
Equity securities(1) | ​ | 1,238 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,238
Total current assets at fair value | $ | 233,321 | ​ | $ | — | ​ | $ | — | ​ | $ | 233,321
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Sponsor Earn-Out liabilities | $ | — | ​ | $ | — | ​ | $ | 1,593 | ​ | $ | 1,593
Total liabilities at fair value | $ | — | ​ | $ | — | ​ | $ | 1,593 | ​ | $ | 1,593
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2024 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents in money market funds (Note 5) | $ | 120,888 | ​ | $ | — | ​ | $ | — | ​ | $ | 120,888
U.S. treasury securities | ​ | 132,782 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 132,782
Equity securities(1) | ​ | 967 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 967
Total current assets at fair value | $ | 254,637 | ​ | $ | — | ​ | $ | — | ​ | $ | 254,637
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Sponsor Earn-Out liabilities | $ | — | ​ | $ | — | ​ | $ | 9,472 | ​ | $ | 9,472
Total liabilities at fair value | $ | — | ​ | $ | — | ​ | $ | 9,472 | ​ | $ | 9,472
(1) Fair value was determined using publicly quoted market prices obtained from third-party sources in their respective markets.

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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