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Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales $ 1,144,698 $ 1,081,299 $ 1,160,645
Long-Lived Assets 870,091 595,335 557,158
UNITED STATES      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 642,268 627,160 674,924
Long-Lived Assets 560,405 361,005 365,205
OtherCountries [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales 565,956 509,530 546,923
Long-Lived Assets 309,686 234,330 191,953
Intersegment Eliminations [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net sales (63,526) (55,391) (61,202)
Long-Lived Assets $ 0 $ 0 $ 0