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Inventories (Details) - USD ($)
$ in Thousands
Aug. 31, 2019
Sep. 01, 2018
Aug. 31, 2018
Inventory Disclosure [Abstract]      
Raw materials $ 2,310,081   $ 2,070,569
Work in process 468,217   788,742
Finished goods 314,258   659,335
Reserve for excess and obsolete inventory (69,553)   (60,940)
Inventories, net $ 3,023,003 $ 2,996,435 $ 3,457,706