Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

The following table sets forth customers representing 10% or more of accounts receivable and 10% or more of revenues:



	Accounts Receivable December 31,		Revenues Year Ended December 31,
	2017	2016	2017	2016	2015
Company A	***	***	12.0%	10.3%	11.3%
Company B	14.5%	13.1%	10.4%	11.4%	11.9%
Company C	***	10.5%	10.3%	***	***

________________________________

*** Amount represented less than 10% for the reporting period

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



	Year Ended December 31,
	2017	2016	2015
DEFINITY	47.5%	43.6%	38.1%
TechneLite	31.6%	32.9%	24.7%
Xenon	***	***	16.7%

________________________________

*** Amount represented less than 10% of revenues for the reporting period

Schedule of Product Concentration Risk

The following table sets forth customers representing 10% or more of accounts receivable and 10% or more of revenues:



	Accounts Receivable December 31,		Revenues Year Ended December 31,
	2017	2016	2017	2016	2015
Company A	***	***	12.0%	10.3%	11.3%
Company B	14.5%	13.1%	10.4%	11.4%	11.9%
Company C	***	10.5%	10.3%	***	***

________________________________

*** Amount represented less than 10% for the reporting period

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



	Year Ended December 31,
	2017	2016	2015
DEFINITY	47.5%	43.6%	38.1%
TechneLite	31.6%	32.9%	24.7%
Xenon	***	***	16.7%

________________________________

*** Amount represented less than 10% of revenues for the reporting period

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

Schedule of Other Income (Expense), Net

Other (income) expense consisted of the following:



	Years Ended December 31,
(in thousands)	2017			2016			2015
Foreign currency (gains) losses	$	(253	)	$	853		$	1,752
Tax indemnification income	(8,367		)	(1,055		)	(1,655		)
Other income	(18		)	(18		)	(32		)
Total other (income) expense	$	(8,638	)	$	(220	)	$	65

Recent Accounting Pronouncements

The following table provides a description of recent accounting pronouncements that could have a material effect on the Company’s consolidated financial statements:



Standard	Description	Effective Date for Company	Effect on the Consolidated Financial Statements
Recently Issued Accounting Standards Not Yet Adopted
ASU 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting	This ASU clarifies when to account for a change to the terms or conditions of a share–based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, vesting conditions or classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The new guidance will be applied prospectively to awards modified on or after the adoption date. The guidance is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017 for all entities. Early adoption is permitted, including adoption in any interim period for which financial statements have not yet been issued or made available for issuance.	January 1, 2018	The Company does not expect that the adoption of this standard will have a material impact on the Company’s consolidated financial statements.
ASU 2014-09, Revenue from Contracts with Customers (Topic 606) and related additional amendments ASU 2015-14, ASU 2016-08, ASU 2016-10, ASU 2016-11, ASU 2016-12, ASU 2016-20, ASU 2017-05, ASU 2017-10	This ASU and related amendments affect any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets, unless those contracts are within the scope of other standards. The guidance in this ASU supersedes the revenue recognition requirements in Topic 605, Revenue Recognition and most industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The new guidance also includes a set of disclosure requirements that will provide users of financial statements with comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from a reporting organization’s contracts with customers. In August 2015, the Financial Accounting Standards Board issued ASU No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date,” which defers the effective date of ASU 2014-09 by one year. The standard is effective for annual reporting periods beginning after December 15, 2017, and interim periods therein, using either of the following transition methods: • A full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients, or • A modified retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures).	January 1, 2018	The Company has completed its assessment of the impact of the standards on its contract portfolio by reviewing the Company’s current accounting policies and practices and identifying differences that will result from applying the requirements of the new standard to its revenue contracts. The Company categorized its customers into multiple customer types and assessed significant customer arrangements within those customer types. The Company concluded that upon adoption of the new standard there will not be a significant impact to its revenue. The Company, in part due to the limited impact, will utilize the modified retrospective approach of adopting the ASU. The Company has identified and implemented appropriate changes to its business processes and controls to support recognition and disclosure under the new standard. Although the Company does not expect that the adoption of the new standard will have a material impact to its revenues, the Company will significantly expand its disclosures in future filings related to the qualitative and quantitative aspects of its revenue streams.
ASU 2016-02, Leases (Topic 842)	This ASU supersedes existing guidance on accounting for leases in “Leases (Topic 840)” and generally requires all leases to be recognized in the statement of financial position. The provisions of ASU 2016-02 are effective for annual reporting periods beginning after December 15, 2018; early adoption is permitted. The provisions of this ASU are to be applied using a modified retrospective approach.	January 1, 2019	The Company is currently assessing the impact that this standard will have on its consolidated financial statements.



Standard	Description	Effective Date for Company	Effect on the Consolidated Financial Statements
Accounting Standards Adopted During the Year Ended December 31, 2017
ASU 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting	ASU 2016-09 simplifies several aspects of the stock compensation guidance in Topic 718 and other related guidance providing the following amendments: • Accounting for income taxes upon vesting or exercise of share-based payments and related EPS effects • Classification of excess tax benefits on the statement of cash flows • Accounting for forfeitures • Liability classification exception for statutory tax withholding requirements • Cash flow presentation of employee taxes paid when an employer withholds shares for tax-withholding purposes • Elimination of the indefinite deferral in Topic 718	January 1, 2017	The adoption of this standard did not have a material impact on the Company’s consolidated financial statements.