Other Financial Information - Summary of Property, Plant, and Equipment Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 231,723	$ 221,802
Less accumulated depreciation	(169,581)	(159,026)
Property, plant and equipment, net	62,142	62,776
Land and buildings
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	32,628	30,305
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	191,248	189,939
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 7,847	$ 1,558