Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Estimated Useful Lives of Property, Plant and Equipment

Estimated useful lives are as follows:

Buildings	25-33 Years
Tooling and equipment	2-7 Years
Computer equipment	3-5 Years
Software	3-7 Years
Furniture and fixtures	5-8 Years
Leasehold and building improvements	Lesser of lease term or useful life (approximately 2 to 10 years)

Property, plant, and equipment, net were as follows:

	December 31,
(In thousands)	2019			2018
Buildings	$	18,570		$	18,799
Machinery and equipment	94,274			87,700
Tooling	32,267			29,575
Leasehold and building improvements	37,527			34,486
Software	25,910			25,406
Furniture and fixtures	3,905			2,572
Computer equipment	9,935			8,551
	222,388			207,089
Accumulated depreciation	(135,254		)	(116,805		)
	87,134			90,284
Construction in progress	3,598			5,556
Total property, plant, and equipment, net	$	90,732		$	95,840

Construction in progress was as follows:

	December 31,
(In thousands)	2019		2018
Machinery and equipment	1,428		2,444
Tooling	759		1,581
Leasehold and building improvements	574		675
Software	518		352
Other	319		504
Total construction in progress	$	3,598	$	5,556