Capital Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	May 31, 2025	Feb. 28, 2025	Nov. 30, 2024	May 31, 2024	Feb. 29, 2024	Nov. 30, 2023	May 31, 2025	May 31, 2024
Earnings Per Share [Abstract]
Net (Loss) Earnings from Continuing Operations	$ 22,044			$ 22,621			$ 64,668	$ 58,798
Net (Loss) Earnings from Discontinued Operations	0			3,157			0	2,535
Net (loss) earnings	$ 22,044	$ 20,901	$ 21,723	$ 25,778	$ 17,817	$ 17,738	$ 64,668	$ 61,333
Weighted average common shares outstanding - basic	54,051			54,292			54,230	54,344
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	366			534			449	496
Weighted Average Common Shares outstanding - diluted	54,417			54,826			54,679	54,840
(Loss) Earnings per share from Continuing Operations, Per Basic Share	$ 0.41			$ 0.42			$ 1.19	$ 1.08
(Loss) Earnings per share from Continuing Operations, Per Diluted Share	0.41			0.41			1.18	1.07
(Loss) Earnings per share from Discontinued Operations, Per Basic Shares	0.00			0.06			0.00	0.05
(Loss) Earnings per share from Discontinued Operations, Per Diluted Share	0.00			0.06			0.00	0.05
Earnings Per Share, Basic	0.41			0.47			1.19	1.13
(Loss) Earnings Per Share, Diluted	$ 0.41			$ 0.47			$ 1.18	$ 1.12
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities from stock based compensation plans (excluded from earnings per share calculation)	188			1			143	128