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Long-term financial investments - Schedule of Equity- Accounted Investments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | $ 13,901 |
Investments, ending balance | 8,238 | $ 13,901
Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 40,345 | 42,331
Contributions (Proceeds) |  | 10,911
Change in Fair Value |  | (12,897)
Investments, ending balance |  | 40,345
Long -Term Financial Investments |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 40,345 |
Contributions (Proceeds) | 11,958 |
Change in Fair Value | (14,788) |
Investments, ending balance | 37,515 | 40,345
Forsee Power | Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 14,969 | 18,470
Contributions (Proceeds) | 0 | 0
Change in Fair Value | (12,699) | (3,501)
Investments, ending balance | 2,270 | 14,969
Wisdom Motor | Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 4,100 |
Contributions (Proceeds) | 0 |
Change in Fair Value | (2,200) |
Investments, ending balance | 1,900 | 4,100
Wisdom Motor | Long -Term Financial Investments |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 4,100 | 10,000
Contributions (Proceeds) |  | (1,000)
Change in Fair Value |  | (4,900)
Investments, ending balance |  | 4,100
Quantron AG | Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 4,400 |
Contributions (Proceeds) | 1 |
Change in Fair Value | (4,401) |
Investments, ending balance | 0 | 4,400
Quantron AG | Long -Term Financial Investments |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 4,400 | 5,333
Contributions (Proceeds) |  | 3,304
Change in Fair Value |  | (4,237)
Investments, ending balance |  | 4,400
HyCap Fund | Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 12,801 | 7,963
Contributions (Proceeds) | 6,102 | 4,624
Change in Fair Value | 5,084 | 214
Investments, ending balance | 23,987 | 12,801
CleanH2 Fund | Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 4,075 | 565
Contributions (Proceeds) | 5,328 | 3,983
Change in Fair Value | (360) | (473)
Investments, ending balance | 9,043 | 4,075
Templewater Fund | Long -Term Investment |  |
Investment Other Entities [Roll Forward] |  |
Investments, beginning balance | 0 |
Contributions (Proceeds) | 527 |
Change in Fair Value | (212) |
Investments, ending balance | $ 315 | $ 0

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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2024-01-01 -Paragraph 24 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_24_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph B16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_e&doctype=Standard -URIDate 2024-03-27 + Details
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