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Leases - Supplemental Cash Flow Disclosures (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2020
Leases [Abstract]      
Operating cash flows related to operating leases $ 26,620 $ 28,576  
Operating cash flows related to finance leases 5 65  
Financing cash flows related to finance leases 530 1,118 $ 1,065
Right-of-use assets obtained in exchange for new operating lease liabilities 24,217 41,770  
Right-of-use assets obtained in exchange for new finance lease liabilities $ 0 $ 0