Goodwill and Other Intangible Assets - Fair value (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($) item
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of goodwill	$ 0	$ 86,318,000
Impairment of intangibles	283,747,000	17,903,000
IPR&D
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles		7,600,000
Product Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	146,033,000
Distribution Rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	64,719,000
Developed Technology
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	$ 72,995,000	$ 10,303,000
Minimum | Measurement Input, Discount Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate for goodwill and intangible assets | item	14.0	14.0
Maximum | Measurement Input, Discount Rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate for goodwill and intangible assets | item	16.5	16.5
Venlafaxine ER/VERT
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	$ 137,700,000
Methylphenidate ER
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	128,100,000
Osmolex ER [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	17,700,000
Corvite [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impairment of intangibles	$ 200,000