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FAIR VALUE ACCOUNTING | 6 Months Ended
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Jun. 30, 2026
Fair Value Disclosures [Abstract] |
Fair Value Accounting | FAIR VALUE ACCOUNTING Assets and Liabilities Measured at Fair Value on a Recurring Basis Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Fair value accounting utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described, below: Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 – Quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; and Level 3 – Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (supported by little or no market activity). The Company’s financial instruments as of June 30, 2026 and December 31, 2025 include cash, cash equivalents, restricted cash, accounts receivable, accounts payable and current accrued liabilities. These instruments are carried at cost, which approximates fair value due to the short-term maturities of the instruments. Allowances for doubtful accounts are recorded against the accounts receivable balance to estimate net realizable value. The Company’s investments in marketable equity securities are publicly traded stocks measured at fair value and classified within Level 1 and Level 2 in the fair value hierarchy. Level 1 marketable equity securities use quoted prices for identical assets in active markets, while Level 2 marketable equity securities utilize inputs based upon quoted prices for similar instruments in active markets. The Company’s investments in marketable debt securities are valued using quoted prices of a pricing service and, as such, are classified within Level 2 of the fair value hierarchy. The Company’s investments accounted for at fair value consisting of common shares are valued using quoted market prices in active markets and, as such, are classified within Level 1 of the fair value hierarchy. The Company’s Advances to the Donald Project JV are accounted as a marketable debt securities and valued using the discounted cash flow approach. The discounted cash flow approach is an income based valuation approach used to estimate the instrument’s fair value using a range of indicated discount rates between 6.22% to 6.33% and 5.52% to 6.00% for the valuations as of June 30, 2026 and December 31, 2025, respectively, depending on the estimated timing of a positive FID or no positive FID. The indicated discount rate range is based upon significant inputs not observable in the market and thus represents a Level 3 measurement within the fair value hierarchy. The Company used the discounted cash flow approach, which is an income-based valuation approach, to estimate the fair value of its contingent consideration payment to RadTran using an indicated discount rate of 6.60% as of June 30, 2026 and 5.80% as of December 31, 2025. The indicated discount rate is based on significant inputs not observable in the market, and thus represents a Level 3 measurement within the fair value hierarchy. The following tables set forth the fair value of the Company’s assets and liabilities measured at fair value on a recurring basis (at least annually) by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
| Level 1 |  | Level 2 |  | Level 3 |  | Total
June 30, 2026 |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Marketable debt securities | $ | — |  |  | $ | 855,686 |  |  | $ | 24,905 |  |  | $ | 880,591 |
Marketable equity securities | 22,603 |  |  | 49 |  |  | — |  |  | 22,652 |
Total assets | $ | 22,603 |  |  | $ | 855,735 |  |  | $ | 24,905 |  |  | $ | 903,243 |
Liabilities |  |  |  |  |  |  |
Contingent consideration | $ | — |  |  | $ | — |  |  | $ | 1,767 |  |  | $ | 1,767 |
December 31, 2025 |  |  |  |  |  |  |
Assets |  |  |  |  |  |  |
Marketable debt securities | $ | — |  |  | $ | 776,332 |  |  | $ | 10,241 |  |  | $ | 786,573 |
Marketable equity securities | 20,693 |  |  | 81 |  |  | — |  |  | 20,774 |
Total assets | $ | 20,693 |  |  | $ | 776,413 |  |  | $ | 10,241 |  |  | $ | 807,347 |
Liabilities |  |  |  |  |  |  |
Contingent consideration | $ | — |  |  | $ | — |  |  | $ | 1,723 |  |  | $ | 1,723 |
Changes in Level 3 Fair Value Measurements The following table is a reconciliation of the beginning and ending balance recorded for the contingent consideration classified as Level 3 in the fair value hierarchy:
Beginning balance, December 31, 2025 | $ | 1,723 |
Changes in estimated fair value | 44 |
Ending balance, June 30, 2026 | $ | 1,767 |
The following table is a reconciliation of the beginning and ending balance recorded for the Advances to the Donald Project that are classified as Level 3 in the fair value hierarchy:
Balance as of December 31, 2025 | $ | 10,241 |
Additions | 15,374 |
Changes in estimated fair value | (710) |
Balance as of June 30, 2026 | $ | 24,905 |
The following table presents the fair value and carrying value recorded for the Notes (in thousands):
| June 30, 2026 |  | December 31, 2025
| Fair |  | Carrying |  | Fair |  | Carrying
| Value(1) |  | Value(2) |  | Value(1) |  | Value(2)
Notes | $ | 724,920 |  |  | $ | 677,684 |  |  | $ | 721,000 |  |  | $ | 675,688 |
(1) Fair values are based on Level 2 market data inputs. (2) Carrying values are presented net of unamortized debt issuance costs.

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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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