Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Patents, licenses, and other intangible assets
Impairment of intangible assets	$ 0	$ 0	$ 0	$ 0
Abandonment of capitalized intangible assets			2,179,000	797,000
Impairment loss or recoveries	0	0	0	0
Net unrealized gain (loss) on marketable securities	2,500,000	1,200,000	500,000	6,200,000
Impairment on equity securities	0	0	20,430,000	0
In-process intangible assets
Patents, licenses, and other intangible assets
Abandonment of capitalized intangible assets	$ 1,400,000	$ 200,000	$ 2,200,000	$ 800,000