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Retirement Plans
 12 Months Ended
Jul. 31, 2020
Retirement Benefits [Abstract]  
Retirement Plans Retirement Plans
 
We have 401(k) Savings and Retirement Plans for the benefit of eligible U.S. employees. Additionally, our Canadian and certain European subsidiaries maintain profit sharing plans for the benefit of eligible employees. Employer contributions are both discretionary and non-discretionary and are limited in any year to the amount allowable by government tax authorities.
 
Aggregate employer contributions recognized under these plans were $6,749, $4,999 and $4,676 for fiscal 2020, 2019 and 2018, respectively.