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Fair Value Measurements | 6 Months Ended
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Jun. 30, 2026
Fair Value Measurements |
Fair Value Measurements | Note 11. Fair Value Measurements ​ Fair value is defined as the price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ​ (a) Fair Value Hierarchy ​ The accounting guidance for fair value measurement requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The fair value hierarchy is as follows: ​ Level 1 - applies to assets or liabilities for which there are quoted prices in active markets for identical assets or liabilities. ​ Level 2 - applies to assets or liabilities for which there are inputs other than quoted prices that are observable for the asset or liability, such as quoted prices for similar assets or liabilities in active markets; quoted prices for identical assets or liabilities in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which significant inputs are observable or can be derived principally from, or corroborated by, observable market data. ​ Level 3 - applies to assets or liabilities for which there are unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of the assets or liabilities. ​ (b) Fair Value Measurements ​ Our money market funds and short-term investments with initial maturities of three months or less are included in cash and cash equivalents in the consolidated balance sheets. Other investments that have a maturity of greater than three months but less than one year are included within short-term investments in the consolidated balance sheets. Investments that have a maturity of greater than one year are included within long-term investments in the consolidated balance sheets. ​ The following tables set forth our assets which are measured at fair value 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 | ​
​ 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
​ (c) Other Financial Instruments ​ The carrying amounts reflected in the consolidated balance sheets for accounts receivable, prepaid expenses, forward currency exchange contracts and other current assets and non-current assets, restricted cash, accounts payable and accrued expenses approximate fair value due to their short-term maturities. ​ (d) Forward Currency Exchange Contracts ​ We enter into forward currency exchange contracts to minimize the impact of foreign currency fluctuations on our earnings and cash flows. These contracts have month-to-month settlement dates. Any gains or losses on these contracts are reported within Other, net in our Consolidated Statement of Operations. Any open contracts at period end that have settlement dates within one month after the reported period end are marked-to-market and the valuation adjustments related to these open contracts are recorded in the current asset or current liability account. Any unrealized gain or loss on the open contracts is recognized and recorded within Other, net in our Consolidated Statement of Operations. These contracts are measured at fair value using observable market inputs such as forward currency exchange rates and our counterparties’ credit risks. Based on these inputs, the derivative instruments are classified within Level 2 of the valuation hierarchy. At June 30, 2026, the recognized unrealized gain on these forward exchange contracts was approximately $0.1 million. Based on our continued ability to trade and enter into forward contracts, we consider the markets for our fair value instruments to be active. We evaluated the credit risk associated with the counterparties to these derivative instruments and determined that as of June 30, 2026, such credit risks have not had an adverse impact on the fair value of these instruments.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
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