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