Defined Contributions and Other Post-Retirement Plans	12 Months Ended
	Jul. 31, 2020
Retirement Benefits [Abstract]
Defined Contributions and Other Post-Retirement Plans	Defined Contribution and Other Post-Retirement PlansThe Company’s employee savings and retirement plan in the United States is qualified under Section 401(k) of the Internal Revenue Code. Employees on the Company’s U.S. payroll are automatically enrolled when they meet eligibility requirements, unless they decline participation. Upon enrollment employees are provided with tax-deferred salary deductions and various investment options. Employees may contribute up to 60% of their eligible salary up to the statutory prescribed annual limit. The Company matches employees’ contributions up to $5,000 per participant per calendar year. Certain of the Company’s foreign subsidiaries also have defined contribution plans in which a majority of its employees participate and the Company makes matching contributions. The Company’s contributions to its 401(k) and foreign subsidiaries’ plans were $10.7 million, $9.9 million, and $8.7 million for the fiscal years ended July 31, 2020, 2019, and 2018, respectively.