Net Earnings Per Share (Schedule of Computation of Basic and Diluted Net Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2023
Earnings Per Share [Abstract]
Net earnings	$ 74,052	$ 66,257	$ 72,379
Weighted average shares outstanding	10,859	10,976	11,003
Diluted effect of stock equivalents	59	41	59
Weighted average shares outstanding assuming dilution	10,918	11,017	11,062
Basic net earnings per share	$ 6.82	$ 6.04	$ 6.58
Diluted net earnings per share	$ 6.78	$ 6.01	$ 6.54