Product Sales - Schedule of Concentration of Risk, by Risk Factor (Details) - Gross Product Revenue - Customer concentration risk	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Besse Medical, a subsidiary of AmerisourceBergen Corporation
Concentration Risk [Line Items]
Concentration risk, percentage	30.00%	51.00%	57.00%
McKesson Corporation
Concentration Risk [Line Items]
Concentration risk, percentage	18.00%	32.00%	33.00%
U.S. government
Concentration Risk [Line Items]
Concentration risk, percentage	43.00%		0.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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