Net Periodic Benefit Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2022
Other Postretirement Benefit Plan, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Foreign Defined Benefit Plan, Net Periodic Benefit Cost	$ 40	$ 100
Foreign Plan Member
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 344	$ 306	$ 159
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	$ 4	$ 3	$ 3
Amortization of actuarial loss	21	10	112
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	37	145
Foreign Defined Benefit Plan, Net Periodic Benefit Cost	261	171	193
Defined Benefit Plan, Service Cost	144	60	90
Domestic Plan Member
Defined Benefit Plan Disclosure [Line Items]
Interest cost	1,716	1,694	1,165
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(1,743)	(1,984)	(2,060)
Amortization of actuarial loss	(928)	(878)	(1,219)
Foreign Defined Benefit Plan, Net Periodic Benefit Cost	$ 901	$ 588	$ 324