Commitments and Contingencies (Details) shares in Millions	Jul. 25, 2019 USD ($) shares	Feb. 20, 2019 USD ($)	Sep. 05, 2018 USD ($)	Jun. 30, 2019 USD ($)
Contingent Potential Milestone Payments, Year ending December 31,
2019				$ 471,000
2020				1,408,000
2021				2,150,000
2022				550,000
Total				4,579,000
Akorn, Inc v. Fresenius
Contingent Potential Milestone Payments, Year ending December 31,
Damages sought		$ 102,000,000
Date Integrity Securities Litigation, First Occurrence
Contingent Potential Milestone Payments, Year ending December 31,
Damages sought			$ 1,070,000,000.00
Date Integrity Securities Litigation, Second Occurrence
Contingent Potential Milestone Payments, Year ending December 31,
Damages sought			$ 613,000,000
Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency liability				74,000,000.0
Contingent Value Rights, Contingent Cash Payments | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency liability				30,000,000.0
Liability to Issue Common Stock, Noncurrent | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency liability				8,500,000
Liability to Issue Common Stock, Current | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency liability				$ 35,500,000
Subsequent Event | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency, number of shares to be issued (shares) | shares	6.5
Contingent value rights, duration of term	5 years
Contingent value rights, extension term	2 years
Percentage of excess EBITDA	33.30%
Loss contingency, EBITDA net leverage ratio	3.0
Contingent value rights, minimum cash cushion	$ 100,000,000.0
Contingent value rights, aggregate cap per year	12,000,000.0
Contingent value rights, aggregate cap per term	60,000,000.0
Loss contingency, effect of 10% change in common stock price on reserve estimate	4,500,000
Subsequent Event | Payment of Insurance Proceeds | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency, estimate of possible loss	30,000,000.0
Subsequent Event | Contingent Value Rights, Change of Control Payment | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency, estimate of possible loss	30,000,000.0
Subsequent Event | Contingent Value Rights, Bankruptcy Claim | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency, estimate of possible loss	30,000,000.0
Subsequent Event | Possible Loss In Excess Of Estimated Liability | Securities Class Action Litigation
Contingent Potential Milestone Payments, Year ending December 31,
Loss contingency, estimate of possible loss	$ 30,000,000.0