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	$ 471,804	$ 457,045
Accumulated depreciation and amortization	(310,445)	(286,736)
Property, plant and equipment, net	161,359	170,309
Finance lease, right-of-use asset, before accumulated amortization	6,700	5,700
Finance lease, right-of-use asset, accumulated amortization	1,600	900
Depreciation	27,600	31,500	$ 34,400
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	5,743	5,805
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	58,972	57,632
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	306,366	302,886
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	11,642	11,450
Capitalized ERP system development costs
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	45,917	45,917
Computers and computer software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	22,243	20,508
Automobiles
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	4,356	4,518
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 16,565	$ 8,329