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Stock-based Payment Compensation (Tables)
 9 Months Ended
Apr. 30, 2020
Share-based Payment Arrangement [Abstract]  
Summary of option activity for stock options The following is a summary of activity for the Company’s stock options for the nine months ended April 30, 2020:
(In thousands, except per share and term data)SharesWeighted Average Exercise PriceWeighted Average Remaining Contractual Term (In years)Aggregate Intrinsic Value
Outstanding as of July 31, 201914,552  $26.29  6.04$745,592  
Grants of options150  88.58  
Exercises(6,898) 18.40  
Forfeitures or expirations(192) 29.77  
Outstanding as of April 30, 20207,612  $34.59  6.51$347,769  
Exercisable as of April 30, 20204,946  $27.20  5.72$262,110  
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] The following is a summary of activity for the Company’s restricted stock for the nine months ended April 30, 2020:
(In thousands, except per share data)Restricted SharesWeighted Average Grant Date Fair Value
Outstanding as of July 31, 2019134  $56.62  
Grants of restricted stock69  82.33  
Vested restricted stock(34) 57.64  
Forfeited restricted stock(20) 59.01  
Outstanding as of April 30, 2020149  $67.87  
Recognized stock-based compensation expense
The table below sets forth the stock-based compensation recognized by the Company for stock options and restricted stock awards:
Three Months Ended April 30,Nine Months Ended April 30,
(In thousands)2020201920202019
General and administrative$4,113  $4,299  $13,258  $13,979  
Yard operations1,442  1,351  3,971  3,621  
Total stock-based compensation$5,555  $5,650  $17,229  $17,600