Commitments and Contingencies (Details) $ in Thousands			1 Months Ended
	Aug. 24, 2015 lawsuit	Mar. 04, 2015 officer	Dec. 31, 2017 USD ($)	Jun. 30, 2018 USD ($)
Contingent Potential Milestone Payments, Year ending December 31,
2018				$ 6,124
2019				8,314
2020				5,070
2021 and Beyond				950
Total				$ 20,458
Yeung v. Akorn, Inc., et al.
Loss Contingencies [Line Items]
Number of officers | officer		3
Yeung v. Akorn, Inc., et al. and Sarzynski v. Akorn, Inc., et al.
Loss Contingencies [Line Items]
Lawsuits filed (in lawsuit) | lawsuit	2
Litigation settlement, amount awarded to other party			$ 24,000
Payments for legal settlements			5,000
Company's Insurers | Yeung v. Akorn, Inc., et al. and Sarzynski v. Akorn, Inc., et al.
Loss Contingencies [Line Items]
Payments for legal settlements			$ 19,000