Summary of Significant Accounting Principles - Concentration of Credit Risk (Details)	3 Months Ended
	Mar. 31, 2023 item	Mar. 31, 2022 item	May 11, 2025 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	94.00%	81.00%
Revenue | Product concentration risk | Minimum | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	10.00%	29.00%
Revenue | Product concentration risk | Maximum | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	33.00%	52.00%
Accounts receivable | Credit concentration risk | Royalty
Concentration of Credit Risk
Number of license agreements	3	2
Accounts receivable | Credit concentration risk | Royalty | one receivable
Concentration of Credit Risk
Concentration risk percentage	100.00%	100.00%