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INCOME TAXES - Schedule of Net Operating Loss Carryforwards (Details) $ in Thousands | Dec. 31, 2025 USD ($)
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Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | $ 460,005
REE Automotive UK Limited |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 643
REE Automotive USA Inc. |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | 864
REE Automotive Japan K.K. |
Operating Loss Carryforwards [Line Items] |
Net operating loss carryforwards | $ 84

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