Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue Recognition - Summary of Sales from Contracts with Customers Disaggregated by Business Segment and Geography

The following tables present the Company’s revenue disaggregated by business segment and geography, based on management’s assessment of available data:

	Three Months Ended June 30, 2021									Three Months Ended June 30, 2020
	U.S.		Outside U.S.		Total Revenues		% of Total Revenues			U.S.		Outside U.S.		Total Revenues		% of Total Revenues
Radiochemical Products	$	1,091,114	$	137,095	$	1,228,209		45	%	$	988,952	$	124,101	$	1,113,053		40	%
Cobalt Products		562,744		14,250		576,994		21	%		217,433		7,233		224,666		8	%
Nuclear Medicine Products		699,384		186,344		885,728		32	%		592,170		185,703		777,873		28	%
Radiological Services		68,965		—		68,965		2	%		43,967		—		43,967		2	%
Fluorine Products		—		—		—		0	%		—		—		—		0	%
	$	2,422,206	$	337,689	$	2,759,896		100	%	$	1,842,522	$	317,037	$	2,159,559		78	%

	Six Months Ended June 30, 2021									Six Months Ended June 30, 2020
	U.S.		Outside U.S.		Total Revenues		% of Total Revenues			U.S.		Outside U.S.		Total Revenues		% of Total Revenues
Radiochemical Products	$	1,637,924	$	251,462	$	1,889,386		40	%	$	1,657,543	$	210,731	$	1,868,274		39	%
Cobalt Products		676,023		19,344		695,367		15	%		522,428		7,858		530,286		11	%
Nuclear Medicine Products		1,581,450		433,437		2,014,887		42	%		1,459,773		360,224		1,819,997		38	%
Radiological Services		130,755		—		130,755		3	%		116,288		—		116,288		2	%
Fluorine Products		22,013		—		22,013		0	%		160,500		—		160,500		3	%
	$	4,048,165	$	704,243	$	4,752,408		100	%	$	3,916,532	$	578,813	$	4,495,345		100	%