Basis of Presentation Basis of Presentation (Details) - USD ($)	3 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Aug. 31, 2024	Aug. 31, 2023
Condensed Statement of Income Captions [Line Items]
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	$ (76,000)		$ (4,000)
Total shareholders’ equity	(398,009,000)	$ (321,676,000)	(391,979,000)	$ (326,620,000)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	109,261,000		99,215,000
Standard and Extended Product Warranty Accrual	493,000	739,000	534,000	856,000
Standard and Extended Product Warranty Accrual, Increase for Warranties Issued	187,000	45,000
Warranty Payments and costs incurred	(216,000)	(164,000)
Extended Product Warranty Accrual, Foreign Currency Translation Gain (Loss)	(12,000)	2,000
AOCI - Pension and other postretirement benefit plans, net of tax	16,889,000		17,187,000
AOCI Attributable to Parent [Member]
Condensed Statement of Income Captions [Line Items]
Total shareholders’ equity	$ 126,074,000	$ 120,840,000	$ 116,398,000	$ 121,210,000