CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Treasury Stock
Beginning balance (in shares) at Aug. 31, 2022		31,698,000
Beginning balance at Aug. 31, 2022	$ 991,073	$ 3	$ 481,406	$ (195,586)	$ 736,894	$ (31,644)
Treasury stock, beginning balance (in shares) at Aug. 31, 2022						793,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						82,000
Purchase of treasury stock	(5,819)					$ (5,819)
Issuance of treasury stock (in shares)		(7,000)				(7,000)
Issuance of treasury stock	0		(546)			$ 546
Issuance of restricted stock awards (in shares)		237,000
Forfeiture of restricted stock awards (in shares)		(59,000)
Stock-based compensation	11,239		11,239
Dividend paid to stockholders	(14,260)				(14,260)
Dividend payable to stockholders	(14,456)				(14,456)
Net income	64,252				64,252
Other comprehensive income	11,883			11,883
Ending balance (in shares) at Feb. 28, 2023		31,869,000
Ending balance at Feb. 28, 2023	1,043,912	$ 3	492,099	(183,703)	772,430	$ (36,917)
Treasury stock, ending balance (in shares) at Feb. 28, 2023						868,000
Beginning balance (in shares) at Nov. 30, 2022		31,858,000
Beginning balance at Nov. 30, 2022	1,026,363	$ 3	485,096	(196,137)	769,799	$ (32,398)
Treasury stock, beginning balance (in shares) at Nov. 30, 2022						807,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						61,000
Purchase of treasury stock	(4,519)					$ (4,519)
Issuance of restricted stock awards (in shares)		63,000
Forfeiture of restricted stock awards (in shares)		(52,000)
Stock-based compensation	7,003		7,003
Dividend paid to stockholders	(14,260)				(14,260)
Dividend payable to stockholders	(14,456)				(14,456)
Net income	31,347				31,347
Other comprehensive income	12,434			12,434
Ending balance (in shares) at Feb. 28, 2023		31,869,000
Ending balance at Feb. 28, 2023	$ 1,043,912	$ 3	492,099	(183,703)	772,430	$ (36,917)
Treasury stock, ending balance (in shares) at Feb. 28, 2023						868,000
Beginning balance (in shares) at Aug. 31, 2023	30,976,941	31,935,000
Beginning balance at Aug. 31, 2023	$ 1,107,043	$ 3	497,434	(163,992)	817,559	$ (43,961)
Treasury stock, beginning balance (in shares) at Aug. 31, 2023	957,959					958,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						967,000
Purchase of treasury stock	$ (71,738)					$ (71,738)
Issuance of treasury stock (in shares)	(3,000)	(3,000)				(3,000)
Issuance of treasury stock	$ 0		(185)			$ 185
Issuance of restricted stock awards (in shares)		655,000
Forfeiture of restricted stock awards (in shares)		(8,000)
Stock-based compensation	8,100		8,100
Dividend paid to stockholders	(17,781)				(17,781)
Dividend payable to stockholders	(17,771)				(17,771)
Net income	77,318				77,318
Other comprehensive income	$ 8,703			8,703
Ending balance (in shares) at Feb. 29, 2024	30,656,141	32,579,000
Ending balance at Feb. 29, 2024	$ 1,093,874	$ 3	505,349	(155,289)	859,325	$ (115,514)
Treasury stock, ending balance (in shares) at Feb. 29, 2024	1,922,401					1,922,000
Beginning balance (in shares) at Nov. 30, 2023		32,416,000
Beginning balance at Nov. 30, 2023	$ 1,082,244	$ 3	500,795	(160,412)	855,606	$ (113,748)
Treasury stock, beginning balance (in shares) at Nov. 30, 2023						1,899,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						23,000
Purchase of treasury stock	(1,766)					$ (1,766)
Issuance of restricted stock awards (in shares)		167,000
Forfeiture of restricted stock awards (in shares)		(4,000)
Stock-based compensation	4,554		4,554
Dividend paid to stockholders	(17,781)				(17,781)
Dividend payable to stockholders	(17,771)				(17,771)
Net income	39,271				39,271
Other comprehensive income	$ 5,123			5,123
Ending balance (in shares) at Feb. 29, 2024	30,656,141	32,579,000
Ending balance at Feb. 29, 2024	$ 1,093,874	$ 3	$ 505,349	$ (155,289)	$ 859,325	$ (115,514)
Treasury stock, ending balance (in shares) at Feb. 29, 2024	1,922,401					1,922,000