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Additions and Returns of Product Rights - Schedule of Initial Payments and Consideration (Details) - Vibativ - USD ($)
1 Months Ended 3 Months Ended
Apr. 30, 2019
Nov. 30, 2018
Mar. 31, 2020
Business Acquisition [Line Items]      
Payment to acquire business upon closing   $ 20,000,000.0 $ 20,000,000
Cash payment during early 2019 $ 5,000,000.0   5,000,000
Fair value of contingent consideration - net sales royalty     9,182,000
Total consideration     $ 34,182,000