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Concentrations of Credit Risk and Current Expected Credit Losses (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Net Product Revenues | Customer Concentration Risk | Customer A
Concentration of risk
Percentage of concentration risk	19.00%	20.00%	19.00%	20.00%
Net Product Revenues | Customer Concentration Risk | Customer B
Concentration of risk
Percentage of concentration risk	11.00%	13.00%	12.00%	13.00%
Net Product Revenues | Customer Concentration Risk | Customer C
Concentration of risk
Percentage of concentration risk	17.00%	17.00%	18.00%	17.00%
Net Product Revenues | Customer Concentration Risk | Customer D
Concentration of risk
Percentage of concentration risk	9.00%	10.00%	10.00%	11.00%
Net Product Revenues | Customer Concentration Risk | Customer E
Concentration of risk
Percentage of concentration risk	11.00%	8.00%	11.00%	8.00%
Accounts Receivable | Credit Concentration Risk | Collaboration Partner A, B, C and D
Concentration of risk
Percentage of concentration risk			37.00%		42.00%
Accounts Receivable | Credit Concentration Risk | Customer A, B, C D, and E
Concentration of risk
Percentage of concentration risk			32.00%		33.00%

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