Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 384,014	$ 378,734	$ 1,134,823	$ 1,142,800
Product revenue, net
Disaggregation of Revenue [Line Items]
Revenues	376,687	374,601	1,118,152	1,136,670
License and royalty revenues
Disaggregation of Revenue [Line Items]
Revenues	7,327	4,133	16,671	6,130
Total radiopharmaceutical oncology
Disaggregation of Revenue [Line Items]
Revenues	240,616	259,756	748,912	792,265
PYLARIFY
Disaggregation of Revenue [Line Items]
Revenues	240,616	259,756	748,912	791,881
Other radiopharmaceutical oncology
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	384
Total precision diagnostics
Disaggregation of Revenue [Line Items]
Revenues	129,693	103,727	349,869	320,048
DEFINITY
Disaggregation of Revenue [Line Items]
Revenues	81,785	76,965	244,935	231,629
Neuraceq
Disaggregation of Revenue [Line Items]
Revenues	20,442	0	20,442	0
TechneLite
Disaggregation of Revenue [Line Items]
Revenues	21,127	20,480	65,820	70,380
Other precision diagnostics
Disaggregation of Revenue [Line Items]
Revenues	6,339	6,282	18,672	18,039
Strategic partnerships and other revenue
Disaggregation of Revenue [Line Items]
Revenues	$ 13,705	$ 15,251	$ 36,042	$ 30,487