Supplementary Balance Sheet Information - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 33,187	$ 32,896
Building And Construction
Property, Plant and Equipment [Line Items]
Standard warranty period	12 months
EBGL
Property, Plant and Equipment [Line Items]
Standard warranty period	25 years
Land and Building
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 1,900