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Business combinations (Tables) | 12 Months Ended
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Dec. 31, 2025
Business Combination [Abstract] |
Schedule of Hypothetical Number of Shares | The table below summarizes the hypothetical number of shares as of September 12, 2025 that Legacy Mount Logan would have to issue to give TURN owners the same percentage ownerships in the combined company.
|  | Hypothetical Legacy Mount Logan Ownership
|  | Number of Legacy Mount Logan shares outstanding |  | Percentage Ownership
Legacy Mount Logan shareholders |  | 30,960,503 |  |  | 56 | %
TURN shareholders |  | 23,886,447 |  |  | 44 | %
Total |  | 54,846,950 |  |  | 100 | %
Schedule of Purchase Price | The purchase price is calculated based on the number of hypothetical shares of Legacy Mount Logan common stock issued to TURN shareholders multiplied by the share price as demonstrated in the table below (dollars in thousands except for the market price per share).
Number of hypothetical Legacy Mount Logan shares issued to TURN shareholders |  | 23,886,447 |
Legacy Mount Logan market price per share as of September 12, 2025 |  | $ | 1.95 |
Purchase price determination of hypothetical Legacy Mount Logan shares issued to TURN shareholders |  | $ | 46,579 |
Other deal adjustments for expenses incurred |  | 233 |
Purchase price consideration |  | $ | 46,812 |

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