Property, Plant and Equipment

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

8. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following:

	As of			As of
(In thousands)	March 31, 2023			December 31, 2022
Engineering and other equipment	$	173,968		$	170,785
Building		83,287			82,932
Computer hardware and software		82,682			80,455
Building and land improvements		51,081			47,861
Furniture and fixtures		23,525			22,403
Land		5,367			5,364
Total property, plant and equipment		419,910			409,800
Less: accumulated depreciation		(307,941	)		(299,101	)
Total property, plant and equipment, net	$	111,969		$	110,699

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. During the three months ended March 31, 2023 and 2022, no impairment charges were recognized.

Depreciation expense was $7.6 million and $2.8 million for the three months ended March 31, 2023 and 2022, respectively, which is recorded in cost of revenue, selling, general and administrative expenses and research and development expenses in the Condensed Consolidated Statements of Loss.