ACQUISITIONS - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019
Business Combinations [Abstract]
Net sales	$ 12,581,282	$ 8,870,746	$ 9,067,750
Net income	$ 667,308	$ 223,861	$ 136,831
Basic earnings per common share (in dollars per share)	$ 12.06	$ 4.06	$ 2.54
Diluted earnings per common share (in dollars per share)	$ 11.98	$ 4.04	$ 2.53