Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 372,624	$ 357,403
Less: Accumulated depreciation	(263,761)	(245,996)
Total property, plant and equipment	108,863	111,407
Capitalized Computer Software, Gross	49,100	50,300
Capitalized Computer Software, Accumulated Amortization	(45,300)	(42,900)
Capitalized Computer Software, Amortization	3,300	4,700	$ 4,800
Proceeds from Sale of Property Held-for-sale	0	3,227	$ 0
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,027	4,027
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	95,518	93,886
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	256,478	243,810
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 16,601	$ 15,680

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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