Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Schedule of disaggregation of revenue

The following table summarizes revenue by revenue source and reportable segment as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
Major Products/Service Lines by Segment (in thousands)	2020		2019		2020		2019
U.S.
Product revenue, net(1)	$	73,080	$	74,650	$	208,482	$	225,274
License and royalty revenues	4,395		—		5,137		—
Total U.S. revenues	77,475		74,650		213,619		225,274
International
Product revenue, net(1)	10,581		10,587		30,319		31,123
License and royalty revenues	488		539		1,320		1,594
Total International revenues	11,069		11,126		31,639		32,717
Total revenues	$	88,544	$	85,776	$	245,258	$	257,991

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(1)The Company’s principal products include DEFINITY and TechneLite and are categorized within product revenue, net. The Company applies the

same revenue recognition policies and judgments for all of its principal products.