Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment

Property, Plant, and Equipment

Property, plant, and equipment consisted of the following (in thousands):

	December 31,
	2018			2017
Land	$	3,951		$	3,951
Buildings	24,533			24,589
Building improvements	45,067			33,189
Leasehold improvements	9,095			6,513
Computer hardware and software	66,542			61,835
Manufacturing test equipment	27,378			21,312
Furniture and fixtures	6,904			6,363
	183,470			157,752
Less: accumulated depreciation	(92,074		)	(79,704		)
	$	91,396		$	78,048

The cost of disposed property, plant, and equipment totaling $6,367,000 and $6,327,000 was removed from both the asset and accumulated depreciation balances in 2018 and 2017, respectively. Gains and losses on these disposals were immaterial in both periods.

Buildings include rental property with a cost basis of $800,000 and $5,750,000 as of December 31, 2018 and 2017, respectively, and accumulated depreciation of $234,000 and $3,069,000 as of December 31, 2018 and 2017, respectively.