Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Estimated useful lives by each type of asset category are as follows:

	Years
Buildings	Up to 39
Leasehold improvements	Lesser of (i) expected useful life of improvement or (ii) life of lease (including likely extension thereof)
Machinery and equipment	1 to 10

Property, plant and equipment by type were as follows:

(in thousands)	As of December 31,
Property, Plant and Equipment	2022		2021
Leasehold improvements	$	7,107	$	7,107
Machinery and equipment	45,747		44,358
Construction in progress	467		1,125
Total property, plant and equipment, at cost	53,321		52,590
Accumulated depreciation	(39,477)		(35,246)
Property, plant and equipment, net	$	13,844	$	17,344