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Fair Value Measurement - Summary of Fair Value of Financial Liabilities Measured Using Level 3 Inputs (Parenthetical) (Detail) $ in Millions | Sep. 29, 2023 USD ($)
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Subordinated Convertible Bonds [Member] | Alvotech [Member] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Debt instrument face amount | $ 40

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