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Summary of Statements of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended
Oct. 31, 2022
Oct. 31, 2021
Schedule of Equity Method Investments [Line Items]    
Revenues $ 321,816 $ 370,083
Selling, general and administrative [1] 65,864 60,113
Total costs and expenses 302,390 356,222
Loss from operations 20,226 13,773
Other expense (3,842) (16,216)
Net loss 12,555 (2,345)
Equity Method Investee [Member]    
Schedule of Equity Method Investments [Line Items]    
Revenues 1,873 1,691
Direct cost of revenues 1,694 1,462
Selling, general and administrative 1,636 1,889
Total costs and expenses 3,330 3,351
Loss from operations (1,457) (1,660)
Other expense (344) (1)
Net loss $ (1,801) $ (1,661)
[1] Stock-based compensation included in selling, general and administrative expenses