Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of product concentration risk

The following table sets forth revenues for each of the Company’s products representing 10% or more of revenues:

	Year Ended December 31,
	2020	2019	2018
DEFINITY	62.8%	62.6%	53.3%
TechneLite	25.4%	24.9%	28.8%

Schedule of estimated useful lives of major classes of depreciable assets

The estimated useful lives of the major classes of depreciable assets are as follows:

Class	Range of Estimated Useful Lives
Buildings	10 - 50 years
Land improvements	15 - 40 years
Machinery and equipment	3 - 15 years
Furniture and fixtures	15 years
Leasehold improvements	Lesser of lease term or 15 years
Computer software	3 - 5 years

Property, plant and equipment, net, consisted of the following:

	December 31,
(in thousands)	2020		2019
Land	$	13,450	$	13,450
Buildings	70,381		75,654
Machinery, equipment and fixtures	77,854		87,763
Computer software	23,644		20,739
Construction in progress	11,254		10,546
	196,583		208,152
Less: accumulated depreciation and amortization	(76,412)		(91,655)
Total property, plant and equipment, net	$	120,171	$	116,497

Schedule of other expense (income)

Other (income) loss consisted of the following:

	Year Ended December 31,
(in thousands)	2020		2019		2018
Foreign currency losses (gains)	$	260	$	(33)	$	557
Tax indemnification (income) expense, net	(2,218)		10,635		(2,855)
Interest income	(238)		(686)		(167)
Arbitration award	—		(3,453)		—
Other	(2)		(242)		—
Total other (income) loss	$	(2,198)	$	6,221	$	(2,465)

Schedule of recent account pronouncements

Standard	Description	Effective Date for Company	Effect on the Consolidated Financial Statements
Accounting Standards Adopted During the Year Ended December 31, 2020
ASU 2020-04 and 2021-01, “Reference Rate Reform (Topic 848)”	ASU 2020-04 provides optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. ASU 2021-01 amends the previous standard to clarify certain expedient options are applicable to derivative instruments that use an interest rate for margining, discounting, or contract price alignment.	January 1, 2020	The adoption of this standard did not have a material impact on the Company’s consolidated financial statements.
ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326)”	This ASU requires financial instruments measured at amortized cost and accounts receivable to be presented at the net amount expected to be collected. The new model requires an entity to estimate credit losses based on historical information, current information and reasonable and supportable forecasts that affect the collectability of the reported amount.	January 1, 2020	The adoption of this standard did not have a material impact on the Company’s consolidated financial statements.