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Property, Plant, and Equipment (Details) - USD ($)
$ in Thousands
Aug. 29, 2020
Aug. 31, 2019
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 327,183 $ 267,172
Less accumulated depreciation 152,238 139,600
Property, plant, and equipment, net 174,945 127,572
Land    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross 11,101 6,799
Buildings and building improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross 165,343 119,638
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross 117,370 107,701
Software    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross 28,456 29,169
Transportation    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment, gross $ 4,913 $ 3,865