Property, Plant, and Equipment, net

3 Months Ended

Mar. 31, 2020

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment, net

Property, Plant, and Equipment, net

As of March 31, 2020, December 31, 2019 and 2018, property, plant, and equipment, net consists of the following :

	As of March 31,		As of December 31,
	2020		2019		2018
	(Unaudited)
	(In thousands)
Buildings	$	9,142	$	9,142	$	9,142
Leasehold improvements	23,762		20,048		16,570
Aircraft	320		320		320
Machinery and equipment	34,000		33,608		22,114
IT software and equipment	17,282		17,151		13,602
Construction in progress	4,564		3,674		620
	89,070		83,943		62,368
Less accumulated depreciation and amortization	(36,688)		(34,610)		(28,154)
Property, plant, and equipment, net	$	52,382	$	49,333	$	34,214

Total depreciation and amortization for the three months ended March 31, 2020 and 2019 was $2.1 million and $1.6 million, respectively, of which $0.9 million and $0.3 million was recorded in research and development expense, respectively.

Total depreciation and amortization for the years ended December 31, 2019, 2018 and 2017 was $6.9 million, $5.8 million and $5.1 million, respectively, of which $3.7 million, $1.2 million and $1.4 million was recorded in research and development expense, respectively.