Concentrations of Credit Risk and Current Expected Credit Losses (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Net Product Revenues | Customer Concentration Risk | Customer A
Concentration of risk
Percentage of concentration risk	18.00%	19.00%
Net Product Revenues | Customer Concentration Risk | Customer B
Concentration of risk
Percentage of concentration risk	13.00%	13.00%
Net Product Revenues | Customer Concentration Risk | Customer C
Concentration of risk
Percentage of concentration risk	17.00%	18.00%
Net Product Revenues | Customer Concentration Risk | Customer D
Concentration of risk
Percentage of concentration risk	10.00%	11.00%
Accounts Receivable | Credit Concentration Risk | Collaboration Partner A, B, C and D
Concentration of risk
Percentage of concentration risk	26.00%		42.00%
Accounts Receivable | Credit Concentration Risk | Customer A, B, C and D
Concentration of risk
Percentage of concentration risk	35.00%		29.00%