Basis of Presentation Basis of Presentation (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 28, 2026 USD ($)	Feb. 28, 2025 USD ($)	Feb. 28, 2026 USD ($) Segment	Feb. 28, 2025 USD ($)	Aug. 31, 2025 USD ($)	Aug. 31, 2024 USD ($)
Condensed Statement of Income Captions [Line Items]
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	$ 227		$ 227		$ (18)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	86,153		86,153		89,061
Standard and Extended Product Warranty Accrual	920	$ 890	920	$ 890	1,089	$ 534
Standard and Extended Product Warranty Accrual, Increase for Warranties Issued			256	478
Warranty Payments and costs incurred			(437)	$ (485)
Extended Product Warranty Accrual, Foreign Currency Translation Gain (Loss)	12	$ (18)
AOCI - Pension and other postretirement benefit plans, net of tax	14,548		14,548		15,091
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (100,928)		$ (100,928)		$ (104,134)
Number of Reportable Segments | Segment			1