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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2026
Fair Value Measurements |
Schedule of Company's assets and liabilities by level within the fair value hierarchy | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2026 |
​ | ​ | 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) | ​ | $ | 96,813 | ​ | $ | — | ​ | $ | — | ​ | $ | 96,813 | ​
Short-term investments (U.S. Government Securities and Agency Investments) | ​ | ​ | 247,220 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 247,220 | ​
Mark-to-market adjustment on forward exchange contracts | ​ | ​ | — | ​ | ​ | 100 | ​ | ​ | — | ​ | ​ | 100 | ​
Long-term investments (U.S. Government Securities and Agency Investments) | ​ | ​ | 174,829 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 174,829 | ​
Total | ​ | $ | 518,862 | ​ | $ | 100 | ​ | $ | — | ​ | $ | 518,962 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2025 |
​ | ​ | 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) | ​ | $ | 93,348 | ​ | $ | — | ​ | $ | — | ​ | $ | 93,348 | ​
Short-term investments (U.S. Government Securities and Agency Investments) | ​ | ​ | 228,802 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 228,802 | ​
Mark-to-market adjustment on forward exchange contracts | ​ | ​ | — | ​ | ​ | 435 | ​ | ​ | — | ​ | ​ | 435 | ​
Long-term investments (U.S. Government Securities and Agency Investments) | ​ | ​ | 182,396 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 182,396 | ​
Total | ​ | $ | 504,546 | ​ | $ | 435 | ​ | $ | — | ​ | $ | 504,981 | ​
​
Schedule of contractual maturities of our cash equivalents and investments | The following table summarizes the contractual maturities of our cash equivalents and investments as of June 30, 2026:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | Amortized Cost | ​ ​ ​ | Fair Value
​ | ​ | (in thousands)
Due within one year | ​ | $ | 344,180 | ​ | $ | 344,033
Due after one year through two years | ​ |  | 175,770 | ​ |  | 174,829
Total | ​ | $ | 519,950 | ​ | $ | 518,862

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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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