Revenues and Trade Receivables, Net, Concentration of Major Customers (Details) - Customer	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue [Member]
Customer Concentration [Abstract]
Number of customers exceeding 10% thresholds		2
Revenue [Member] | Customer Concentration Risk [Member] | Indivior [Member]
Customer Concentration [Abstract]
Concentrations of risk	64.00%	57.00%
Revenue [Member] | Customer Concentration Risk [Member] | Sunovion [Member]
Customer Concentration [Abstract]
Concentrations of risk		26.00%
Receivables [Member]
Customer Concentration [Abstract]
Number of customers exceeding 10% thresholds	3	4
Receivables [Member] | Customer Concentration Risk [Member] | Indivior [Member]
Customer Concentration [Abstract]
Concentrations of risk	66.00%	53.00%
Receivables [Member] | Customer Concentration Risk [Member] | AmerisourceBergen [Member]
Customer Concentration [Abstract]
Concentrations of risk	12.00%	14.00%
Receivables [Member] | Customer Concentration Risk [Member] | Sunovion [Member]
Customer Concentration [Abstract]
Concentrations of risk		13.00%
Receivables [Member] | Customer Concentration Risk [Member] | Cardinal [Member]
Customer Concentration [Abstract]
Concentrations of risk	10.00%	10.00%