Commitments and contingencies	6 Months Ended
Commitments and contingencies	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingencies	Commitments and contingencies Securities Litigation On April 20, 2021, May 14, 2021 and June 2, 2021 class action lawsuits were filed against the Company and certain of its current and former senior officers in the United States District Court for the District of Maryland on behalf of purchasers of the Company's common stock, seeking to pursue remedies under the Securities Exchange Act of 1934 (the “Exchange Act”). These complaints were filed by Plaintiff Palm Tran, Inc. – Amalgamated Transit Union Local 1577 Pension Plan; Plaintiff Alan I. Roth; and Plaintiff Stephen M. Weiss, respectively. The complaints allege, among other things, that the defendants disseminated materially false and misleading information about its capabilities to manufacture COVID-19 vaccine bulk drug substance in violation of Sections 10(b) and 20(a) of the Exchange Act and Rule 10b-5 promulgated thereunder. The defendants believe that the allegations in the complaints are false and intend to defend the matters vigorously. It is expected that all three of these cases will be consolidated into a single action. Given the uncertainty of litigation, the preliminary stage of the cases, and the legal standards that must be met for, among other things, class certification and success on the merits, the Company cannot reasonably estimate the possible loss or range of loss, if any, that may result from these actions. On June 29, 2021, Lincolnshire Police Pension Fund filed a stockholder derivative lawsuit in the United States District Court for the District of Maryland on behalf of the Company against certain of its current and former officers and directors for breach of fiduciary duties, waste of corporate assets, and unjust enrichment, each allegation related to the Company’s capabilities to manufacture COVID-19 vaccine bulk drug substance. In addition to monetary damages, the complaint seeks the implementation of multiple corporate governance and internal policy changes. The defendants believe that the allegations in the complaint are false and intend to defend the matter vigorously. In addition to the above actions, the Company has received preliminary inquiries and subpoenas to produce documents related to these matters from Representative Maloney and Representative Clyburn, members of the Oversight Committee and the Select Subcommittee on the Coronavirus Crisis, Senator Murray of the Committee on Health, Education, Labor and Pensions, the Financial Industry Regulatory Authority (FINRA), the Department of Justice, the Securities and Exchange Commission (SEC), the Maryland Attorney General’s Office, and the New York Attorney General’s Office. The Company is producing and has produced documents as required in response and will continue to cooperate with these government inquiries. Intellectual Property Emergent BioSolutions’ Adapt Pharma subsidiaries (“Emergent”) are as follows: Emergent Devices Inc. (“EBPA”), formerly known as Adapt Pharma Inc.; Emergent Operations Ireland Limited (“EIRE”), formerly known as Adapt Pharma Operations Limited; and Emergent BioSolutions Ireland Limited (“EIR2”), formerly known as Adapt Pharma Limited. ANDA Litigation - Teva 4mg On or about September 13, 2016, Emergent BioSolutions’ Adapt Pharma subsidiaries EBPA and EIRE, and Opiant received a notice letter from Teva Pharmaceuticals Industries Limited and Teva Pharmaceuticals USA (collectively, “Teva”) that Teva had filed an ANDA with the FDA seeking regulatory approval to market a generic version of NARCAN® (naloxone hydrochloride) Nasal Spray 4 mg/spray before the expiration of U.S. Patent No. 9,211,253, (the “‘253 Patent”). Emergent and Opiant received additional notice letters from Teva relating to U.S. Patent Nos. 9,468,747 (the “‘747 Patent”), 9,561,177, (the “‘177 Patent”), 9,629,965, (the “‘965 Patent”) and 9,775,838 (the “‘838 Patent”) and 10,085,937 (the “‘937 Patent”). Teva’s notice letters asserted that the commercial manufacture, use or sale of its generic drug product described in its ANDA would not infringe the ‘253, the ‘747, the ‘177, the ‘965, the ‘838, or the ‘937 Patent, or that the ‘253, the ‘747, the ‘177, the ‘965, the ‘838, and the ‘937 Patents were invalid or unenforceable. Emergent and Opiant filed a complaint for patent infringement against Teva in the U.S. District Court for the District of New Jersey with respect to the ‘253 Patent. Emergent and Opiant also filed complaints for patent infringement against Teva in the U.S. District Court for the District of New Jersey with respect to the ‘747, the ‘177, the ‘965, and the ‘838 Patents. All five proceedings were consolidated. On June 5, 2020, the U.S. District Court for the District of New Jersey ruled in favor of Teva. Emergent filed its Notice of Appeal on July 23, 2020 with the Court of Appeals for the Federal Circuit. Briefs in the appeal have been filed. The appeal hearing has been scheduled for August 2, 2021. Emergent has also filed suit in the Federal Court in Canada against Teva Pharmaceuticals (on July 23, 2020). The litigation in Canada is related to Teva Pharmaceuticals’ recent filing of an abbreviated new drug submission (“ANDS”) in Canada seeking to manufacture and sell a generic form of NARCAN® Nasal Spray ahead of the expiry of the Canadian patent covering our product. ANDA Litigation - Teva 2mg On or about February 27, 2018, Emergent BioSolutions’ Adapt Pharma subsidiaries EBPA and EIRE, and Opiant received a notice letter from Teva that Teva had filed an ANDA with the FDA seeking regulatory approval to market a generic version of NARCAN® (naloxone hydrochloride) Nasal Spray 2 mg/spray before the expiration of U.S. Patent No. 9,480,644, (the “‘644 Patent”) and U.S. Patent No. 9,707,226, (the “‘226 Patent”). Teva’s notice letter asserted that the commercial manufacture, use or sale of its generic drug product described in its ANDA would not infringe the ‘644 Patent or the ‘226 Patent, or that the ‘644 Patent and ‘226 Patent were invalid or unenforceable. Emergent and Opiant filed a complaint for patent infringement against Teva in the U.S. District Court for the District of New Jersey. This case is currently stayed pending the outcome of the appeal of the NARCAN® Nasal Spray 4 mg/spray case.