Schedule of Other (Expense) Income, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Other Income and Expenses [Abstract]
Foreign currency transaction gains	$ 848	$ 1,893	$ 598	$ 1,466
Equity in net loss of investee	(820)		(1,443)
(Losses) gains on investments (see Note 7)	(2,952)	1,307	(17,446)	387
Other	(25)	(30)	(874)	(61)
Total other (expense) income, net	$ (2,949)	$ 3,170	$ (19,165)	$ 1,792