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GRANT INCOME (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended | 15 Months Ended
--- | --- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2026
Government Assistance [Abstract] |  |  |  |
Grant income netted against research and development expense | $ 0.1 | $ 0.2 |  |
Grant income netted against construction-in-progress | $ 20.3 | $ 14.1 |  |
Grant awarded during period |  |  | $ 22.1 | $ 0.7

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- Definition Government Assistance, Amount Awarded During Period + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Amount of increase in asset from government assistance, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
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- Definition Amount of increase (decrease) in income from government assistance, classified as operating. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
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