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RELATED PARTY TRANSACTIONS - MISA Agreements (Details) - MISA - Related Party ر.س in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 28, 2022 | Jun. 30, 2026 USD ($) | Jun. 30, 2026 USD ($) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 SAR (ر.س)
MISA Agreement - AMP-2 |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Period for suspension of funding, operation commencement | 30 months |  |  |  |  |  |
Period for suspension of funding, attainment of agreed scope of operations | 55 months |  |  |  |  |  |
Government Grant |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Related party transaction, amount of transaction |  |  |  |  |  | $ 97,500,000 | ر.س 366
Government Grant | AMP-2 Fixed Asset and AMP-2 Construction in Progress Balance |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Related party transaction, amount of transaction |  | $ 0 | $ 0 | $ 0 | $ 97,500,000 |  |

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