Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2019

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,
	2019			2018
Land	$	3,951		$	3,951
Buildings	24,533			24,533
Building improvements	49,289			45,067
Leasehold improvements	10,790			9,095
Computer hardware and software	67,474			66,542
Manufacturing test equipment	31,278			27,378
Furniture and fixtures	6,800			6,904
	194,115			183,470
Less: accumulated depreciation	(104,672		)	(92,074		)
	$	89,443		$	91,396

The cost of disposed property, plant, and equipment totaling $8,883,000 and $6,367,000 was removed from the asset balance in 2019 and 2018, respectively. The cost of disposed property, plant, and equipment totaling $8,559,000 and $6,367,000 was removed from the accumulated depreciation balance in 2019 and 2018, respectively. Gains and losses on these disposals were immaterial in both years.

Buildings include rental property with a cost basis of $800,000 as of December 31, 2019 and 2018, and accumulated depreciation of $255,000 and $234,000 as of December 31, 2019 and 2018, respectively.