Property, Plant and Equipment

6 Months Ended

Jun. 30, 2020

Property Plant And Equipment [Abstract]

9. PROPERTY, PLANT AND EQUIPMENT

At June 30, 2020 and December 31, 2019, property, plant and equipment consisted of the following:

	June 30,			December 31,
(In thousands)	2020			2019
Land	$	4,575		$	4,575
Building and land improvements		34,897			34,797
Building		68,155			68,157
Furniture and fixtures		19,972			19,959
Computer hardware and software		69,564			68,777
Engineering and other equipment		131,785			130,430
Total property, plant and equipment		328,948			326,695
Less: accumulated depreciation		(263,754	)		(258,609	)
Total property, plant and equipment, net	$	65,194		$	68,086

Long-lived assets used in operations are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and the undiscounted cash flows estimated to be generated by the asset are less than the asset’s carrying value. Due to the current economic environment, particularly related to COVID-19, the Company assessed impairment triggers related to long-lived assets during the second quarter of 2020. Based on this assessment, no triggers occurred to perform an impairment test, and no impairment losses of long-lived assets were recorded.

Depreciation expense was $3.0 million and $3.1 million for the three months ended June 30, 2020 and 2019, respectively, and $6.0 million and $6.2 million for the six months ended June 30, 2020 and 2019, respectively, which is recorded in cost of sales, selling, general and administrative expenses and research and development expenses in the Condensed Consolidated Statements of Income (Loss).