Property and Equipment, Net - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 278,136	$ 261,885
Less accumulated depreciation	162,920	154,840
Total	115,216	107,045
Depreciation expense	13,500	13,500	$ 13,200
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	15,765	15,662
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 61,626	57,642
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life	5 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life	40 years
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 167,688	160,163
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life	2 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life	20 years
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 18,714	19,676
Furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life	2 years
Furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life	10 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 14,343	$ 8,742