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Financing Arrangements (Tables)
12 Months Ended
Jul. 31, 2020
Debt Disclosure [Abstract]  
Schedule of long-term debt
Long-term debt
 July 31, 
 20202019
Revolving credit loans outstanding$399,000 $43,000 
Tranche A term loan outstanding546,375 190,000 
Unamortized debt issuance costs(11,166)(2,149)
Total long-term debt, net of unamortized debt issuance costs934,209 230,851 
Current portion of long-term debt(7,375)(10,000)
Long-term debt, net of unamortized debt issuance costs and excluding current portion$926,834 $220,851 
Schedule of convertible debt
Convertible Debt
 July 31, 
 20202019
Convertible debt principal amount$168,000 $ 
Unamortized original issue discount(38,919) 
Unamortized debt issuance costs(4,246) 
Total convertible debt, net of unamortized discount and debt issuance costs$124,835 $