XML 72 R55.htm IDEA: XBRL DOCUMENT v3.21.1
PROPERTY, PLANT AND EQUIPMENT (Schedule of Property, Plant and Equipment) (Details) - USD ($)
$ in Thousands
Mar. 28, 2021
Dec. 27, 2020
Property, Plant and Equipment [Line Items]    
Finance leases $ 2,182 $ 2,182
PP&E, gross 5,828,640 5,744,183
Accumulated depreciation (3,146,271) (3,086,692)
PP&E, net 2,682,369 2,657,491
Land    
Property, Plant and Equipment [Line Items]    
PP&E 246,271 255,171
Buildings    
Property, Plant and Equipment [Line Items]    
PP&E 1,975,578 1,983,823
Machinery and equipment    
Property, Plant and Equipment [Line Items]    
PP&E 3,296,982 3,230,199
Autos and trucks    
Property, Plant and Equipment [Line Items]    
PP&E 73,760 73,647
Construction-in-progress    
Property, Plant and Equipment [Line Items]    
PP&E $ 233,867 $ 199,161