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Revenue recognition - Percentage of Product Sales (Details) - Sales Revenue, Product Line - Product Concentration Risk	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
NARCAN
Concentration Risk [Line Items]
Concentration risk percentage	44.00%	51.00%	39.00%
Other Commercial products
Concentration Risk [Line Items]
Concentration risk percentage	0.00%	1.00%	1.00%
Anthrax MCM
Concentration Risk [Line Items]
Concentration risk percentage	15.00%	20.00%	30.00%
Smallpox MCM
Concentration Risk [Line Items]
Concentration risk percentage	31.00%	18.00%	24.00%
Other Products
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	6.00%

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- Definition

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

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