Commitments and Contingent Liabilities - Additional Information (Details)	3 Months Ended
	Mar. 31, 2019 USD ($) Notice Filer
Commitments And Contingencies Disclosure [Abstract]
Potential losses from claims, legal proceedings probable of occurring | $	$ 0
Number of separate Paragraph IV notices received | Notice	11
Maximum number of days for lawsuit	45 days
Minimum number of months before FDA can approve patent request	30 months
Number of ANDA Filers consolidated to a single case | Filer	8
Loss contingency lead plaintiff filing date	April 11, 2019
Loss contingency completion date	May 02, 2019