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Property, Plant, and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 890,775 $ 874,434  
Less accumulated depreciation 534,330 533,275  
Net Property, Plant, and Equipment 356,445 341,159  
Depreciation 57,200 46,500 $ 46,100
Land and land improvements      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 27,403 28,801  
Buildings      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 283,930 298,516  
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross 528,099 515,131  
Construction and equipment installation in progress      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, gross $ 51,343 $ 31,986