Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 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 March 31,
Major Products/Service Lines by Segment (in thousands)	2020		2019
U.S.
Product revenue, net(1)	$	78,745	$	75,434
Total U.S. revenues	78,745		75,434
International
Product revenue, net(1)	11,468		10,549
License and royalty revenues	491		527
Total International revenues	11,959		11,076
Total revenues	$	90,704	$	86,510

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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.