Legal and U.S. Regulatory Proceedings (Details) $ in Millions		12 Months Ended
	Oct. 20, 2017 USD ($)	Dec. 31, 2018 numberOfDrugs lawsuit defendant
Minimum
Legal and U.S. Regulatory Proceedings Details [Line Items]
Number of defendants | defendant		36
Maximum
Legal and U.S. Regulatory Proceedings Details [Line Items]
Number of defendants | defendant		43
Anti-Trust Lawsuit
Legal and U.S. Regulatory Proceedings Details [Line Items]
Number of actions | lawsuit		12
Anti-Trust Lawsuit | Minimum | Opt Out
Legal and U.S. Regulatory Proceedings Details [Line Items]
Number of drugs involved | numberOfDrugs		24
Anti-Trust Lawsuit | Maximum | Opt Out
Legal and U.S. Regulatory Proceedings Details [Line Items]
Number of drugs involved | numberOfDrugs		29
Stayma Consulting Services
Legal and U.S. Regulatory Proceedings Details [Line Items]
Damages sought | $	$ 1.7