Summary of Statements of Operations (Details) - USD ($) $ in Thousands		12 Months Ended
		Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Current assets		$ 387,068	$ 362,627
Current liabilities		(294,107)	(305,072)
REVENUES		1,238,854	1,364,057	$ 1,446,990
Selling, general and administrative	[1]	276,891	250,481	218,467
TOTAL COSTS AND EXPENSES		1,173,696	1,303,142	1,390,731
LOSS FROM OPERATIONS		60,743	60,089	56,990
Other (expense) income, net		(3,083)	(25,352)	7,916
NET LOSS		44,366	29,005	96,891
Equity Method Investee [Member]
Defined Benefit Plan Disclosure [Line Items]
Current assets		3,661	3,911
Noncurrent assets		2,245	2,462
Current liabilities		(2,771)	(11,480)
Noncurrent liabilities
REVENUES		7,998	7,889	1,898
Direct cost of revenues		6,680	9,451	1,937
Selling, general and administrative		7,871	5,834	3,388
TOTAL COSTS AND EXPENSES		14,551	15,285	5,325
LOSS FROM OPERATIONS		(6,553)	(7,396)	(3,427)
Other (expense) income, net		(1,305)	(342)	101
NET LOSS		$ (7,858)	$ (7,738)	$ (3,326)

[1] Stock-based compensation included in selling, general and administrative expenses