Summary of Significant Accounting Principles - Concentration of Credit Risk (Details)	9 Months Ended
	Sep. 30, 2022 item	Sep. 30, 2021 item	Jun. 17, 2024 agreement
Concentration of Credit Risk
Number of license agreements | agreement			6
Royalty
Concentration of Credit Risk
Number of license agreements	5
Revenue | Product concentration risk | Royalty
Concentration of Credit Risk
Number of license agreements	4	2
Concentration risk percentage	0.00%	0.00%
Revenue | Product concentration risk | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	92.00%	98.00%
Revenue | Product concentration risk | Minimum | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	12.00%	40.00%
Revenue | Product concentration risk | Maximum | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	44.00%	58.00%
Accounts receivable | Credit concentration risk | Royalty
Concentration of Credit Risk
Number of license agreements	1	1
Accounts receivable | Credit concentration risk | Royalty | one receivable
Concentration of Credit Risk
Concentration risk percentage	100.00%	100.00%