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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2024
Fair Value Measurements |
Schedule of Company's assets and liabilities by level within the fair value hierarchy | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2024 |
​ | ​ | Fair Value Measurements |
​ |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |
​ | ​ | (in thousands) |
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents and other short-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents (money market funds, U.S. Government Securities and Agency Investments) | ​ | $ | 104,958 | ​ | $ | — | ​ | $ | — | ​ | $ | 104,958 | ​
Short-term investments (U.S. Government Securities and Agency Investments) | ​ | ​ | 402,820 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 402,820 | ​
Mark-to-market adjustment on forward exchange contracts | ​ | ​ | — | ​ | ​ | (323) | ​ | ​ | — | ​ | ​ | (323) | ​
Total | ​ | $ | 507,778 | ​ | $ | (323) | ​ | $ | — | ​ | $ | 507,455 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2023 |
​ | ​ | Fair Value Measurements |
​ |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |
​ | ​ | (in thousands) |
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents and other short-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents (money market funds, U.S. Government Securities and Agency Investments) | ​ | $ | 118,278 | ​ | $ | — | ​ | $ | — | ​ | $ | 118,278 | ​
Short-term investments (U.S. Government Securities and Agency Investments) | ​ | ​ | 339,240 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 339,240 | ​
Total | ​ | $ | 457,518 | ​ | $ | — | ​ | $ | — | ​ | $ | 457,518 | ​
​

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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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