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Subsequent Events - Additional Information (Detail) - Biologics License Application [member] - Viaskin Peanut [member]	Aug. 07, 2019
Bottom of range [member]
Disclosure of non-adjusting events after reporting period [line items]
Age of patients evaluated	4 years
Top of range [member]
Disclosure of non-adjusting events after reporting period [line items]
Age of patients evaluated	11 years

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+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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