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PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 1,041,301   $ 1,033,485
Less accumulated depreciation (623,875)   (612,237)
Property, Plant and Equipment, Net 417,426   421,248
Depreciation 14,400 $ 13,500  
Capital Leases, Balance Sheet, Assets by Major Class, Net 7,200    
Land and Land Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 47,548   46,998
Building and Building Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 266,586   264,078
Capital Leased Assets, Gross 4,170   4,056
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation (2,385)   (2,294)
Capital Leases, Balance Sheet, Assets by Major Class, Net 1,785   1,762
Machinery and Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 605,747   598,411
Capital Leased Assets, Gross 33,443   32,379
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation (28,039)   (27,260)
Capital Leases, Balance Sheet, Assets by Major Class, Net 5,404   5,119
Tools, Dies and Molds [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 110,675   108,649
Construction in Progress [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 10,745   $ 15,349