Customer, Supplier and Product Concentration - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020 customer product	Mar. 31, 2019 customer product
Concentration Risk [Line Items]
Number of products considered as concentration risks | product	1	1
Big 3 Wholesalers
Risks and Uncertainties [Abstract]
Number of customers considered as concentration risks	3	3
Concentration Risk [Line Items]
Number of customers considered as concentration risks	3	3
All Others
Risks and Uncertainties [Abstract]
Number of customers considered as concentration risks	1
Concentration Risk [Line Items]
Number of customers considered as concentration risks	1
Net Revenue | Product Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	17.00%	12.00%
Prescription Pharmaceuticals | Net Revenue | Segment Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	87.60%	89.20%