Summary of Significant Accounting Principles - Concentration of Credit Risk (Details)	3 Months Ended
	Mar. 31, 2022 item	Mar. 31, 2021 item	Nov. 27, 2023 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	2	2
Concentration risk percentage	0.00%	0.00%
Revenue | Product concentration risk | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	81.00%	100.00%
Revenue | Product concentration risk | Minimum | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	29.00%	41.00%
Revenue | Product concentration risk | Maximum | Royalty | Licensees Two
Concentration of Credit Risk
Concentration risk percentage	52.00%	59.00%
Accounts receivable | Credit concentration risk | Royalty
Concentration of Credit Risk
Number of license agreements	2	1
Accounts receivable | Credit concentration risk | Royalty | one receivable
Concentration of Credit Risk
Concentration risk percentage		100.00%
Accounts receivable | Credit concentration risk | Royalty | Two receivables
Concentration of Credit Risk
Concentration risk percentage	100.00%
Accounts receivable | Credit concentration risk | Minimum | Royalty | Two receivables
Concentration of Credit Risk
Concentration risk percentage	25.00%
Accounts receivable | Credit concentration risk | Maximum | Royalty | Two receivables
Concentration of Credit Risk
Concentration risk percentage	75.00%