Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2019

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 June 30,				Six Months Ended June 30,
Major Products/Service Lines by Segment (in thousands)	2019		2018		2019		2018
U.S.
Product revenue, net(1)	$	75,190	$	74,086	$	150,624	$	145,574
License and royalty revenues	—		—		—		—
Total U.S. revenues	75,190		74,086		150,624		145,574
International
Product revenue, net(1)	9,987		10,918		20,536		21,498
License and royalty revenues	528		569		1,055		1,131
Total International revenues	$	10,515	$	11,487	$	21,591	$	22,629
Total revenues	$	85,705	$	85,573	$	172,215	$	168,203

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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.