Stockholders' Equity - Determining fair value (Details)	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (range)	31.00%		35.00%
Weighted-average expected volatility	31.00%	30.67%	35.00%
Risk-free interest rate (range)	4.13%		2.73%
Expected dividend yield	0.57%	0.63%	0.61%
Employee Stock Option | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (range)		30.41%
Risk-free interest rate (range)		3.52%
Employee Stock Option | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (range)		33.19%
Risk-free interest rate (range)		4.46%
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average expected volatility	31.00%	42.00%	23.00%
Employee Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (range)	27.00%	38.00%	26.00%
Risk-free interest rate (range)	4.94%	1.59%	0.04%
Expected dividend yield	0.57%	0.74%	0.47%
Employee Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility (range)	36.00%	48.00%	39.00%
Risk-free interest rate (range)	5.55%	4.74%	0.44%
Expected dividend yield	0.75%	0.81%	0.59%