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Stock-based Compensation - Company RSA's and RSU's (Details)
shares in Thousands
 9 Months Ended
Apr. 30, 2022
$ / shares
shares
Restricted Shares  
Outstanding, beginning balance (in shares) | shares 102
Grants of restricted stock (in shares) | shares 141
Vested restricted stock (in shares) | shares (22)
Forfeited restricted stock (in shares) | shares (13)
Outstanding, ending balance (in shares) | shares 208
Weighted Average Grant Date Fair Value  
Outstanding, beginning balance (in dollars per share) | $ / shares $ 90.46
Grants (in dollars per share) | $ / shares 133.60
Vested (in dollars per share) | $ / shares 74.24
Forfeited (in dollars per share) | $ / shares 107.05
Outstanding, ending balance (in dollars per share) | $ / shares $ 120.50