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Merger - Schedule of Intangible Assets Acquired (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Nov. 13, 2023
Business Acquisition [Line Items] |  |  |
Impairment | $ 0 |  |
Carrying value | $ 150,600,000 | $ 150,600,000 |
Old Cartesian |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition Date Fair Value |  |  | $ 150,600,000
Old Cartesian | Descartes-08 for MG |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition Date Fair Value |  |  | 93,900,000
Old Cartesian | Descartes-08 for SLE |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition Date Fair Value |  |  | $ 56,700,000

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