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Subsequent Event - Additional Information (Details) - USD ($) | Oct. 22, 2025 | Sep. 30, 2025 | Dec. 31, 2024
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Subsequent Event [Line Items] |  |  |
Nominal value |  | $ 0.01 | $ 0.01
Subsequent Event | Avadel Pharmaceuticals Plc |  |  |
Subsequent Event [Line Items] |  |  |
Issued ordinary share | $ 18.5 |  |
Nominal value | 0.01 |  |
Potential additional cash payment per share upon achievement of specific milestone | 1.5 |  |
Potential additional cash payment per share | $ 20 |  |
Bridge Term Loan Credit Agreement | JPMorgan Chase Bank, N.A. | Subsequent Event | Avadel Pharmaceuticals Plc |  |  |
Subsequent Event [Line Items] |  |  |
Aggregate principal amount | $ 1,200,000,000 |  |
Cash placed in escrow account | $ 700,000,000 |  |

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