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Pension and Defined Contribution Plans - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss	$ 30,900,000	$ 30,900,000	$ 0	$ 0
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets (percent)	10.00%	10.00%
Defined Contribution Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost recognized		$ 14,900,000	11,700,000	11,100,000
Common stock included in defined contribution plan, market value	$ 12,800,000	$ 12,800,000
Common stock included in defined contribution plan as percentage of total fair value of assets in plan		2.20%
Domestic Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss		$ 33,200,000	0	0
Reduction in net periodic pension cost per 100 basis point increase in benefit obligation discount rate		300,000
Additional net periodic pension cost per 100 basis point decrease in expected return on plan assets rate		800,000
Employer expected contribution to defined benefit plans in next fiscal year	$ 0	$ 0
Domestic Plans | Pension Plan | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Targeted asset allocation, percentage	70.00%	70.00%
Domestic Plans | Pension Plan | Real estate
Defined Benefit Plan Disclosure [Line Items]
Targeted asset allocation, percentage	15.00%	15.00%
Domestic Plans | Pension Plan | Equity securities
Defined Benefit Plan Disclosure [Line Items]
Targeted asset allocation, percentage	15.00%	15.00%
Domestic Plans | Pension Plan | Guaranteed insurance policies
Defined Benefit Plan Disclosure [Line Items]
Targeted asset allocation, percentage	100.00%	100.00%
International Plans | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss		$ (2,300,000)	$ 0	$ 0
Reduction in net periodic pension cost per 100 basis point increase in benefit obligation discount rate		700,000
Additional net periodic pension cost per 100 basis point decrease in expected return on plan assets rate		300,000
Employer expected contribution to defined benefit plans in next fiscal year	$ 0	$ 0

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