Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Income Statement [Abstract]
NET INCOME	$ 44,366	$ 29,005	$ 96,891
Change in unrealized loss on available-for-sale securities	(99)	(537)	(51)
Foreign currency translation adjustments	(5,788)	(585)	(2,722)
Other comprehensive loss	(5,887)	(1,122)	(2,773)
COMPREHENSIVE INCOME	38,479	27,883	94,118
Comprehensive income attributable to noncontrolling interests	(3,874)	(1,977)	(416)
COMPREHENSIVE INCOME ATTRIBUTABLE TO IDT CORPORATION	$ 34,605	$ 25,906	$ 93,702