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, 2023		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						958,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						969,000
Purchase of treasury stock	(71,852)					$ (71,852)
Issuance of treasury stock (in shares)		(3,000)				(3,000)
Issuance of treasury stock	0		(185)			$ 185
Issuance of restricted stock awards (in shares)		662,000
Forfeiture of restricted stock awards (in shares)		(31,000)
Stock-based compensation	12,652		12,652
Dividend paid to stockholders	(48,437)				(48,437)
Dividend payable to stockholders	(17,771)				(17,771)
Net income	109,807				109,807
Other comprehensive income (loss)	3,912			3,912
Ending balance (in shares) at May. 31, 2024		32,563,000
Ending balance at May. 31, 2024	1,095,354	$ 3	509,901	(160,080)	861,158	$ (115,628)
Treasury stock, ending balance (in shares) at May. 31, 2024						1,924,000
Beginning balance (in shares) at Feb. 29, 2024		32,579,000
Beginning balance at Feb. 29, 2024	1,093,874	$ 3	505,349	(155,289)	859,325	$ (115,514)
Treasury stock, beginning balance (in shares) at Feb. 29, 2024						1,922,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						2,000
Purchase of treasury stock	(114)					$ (114)
Issuance of restricted stock awards (in shares)		7,000
Forfeiture of restricted stock awards (in shares)		(23,000)
Stock-based compensation	4,552		4,552
Dividend paid to stockholders	(30,656)				(30,656)
Net income	32,489				32,489
Other comprehensive income (loss)	(4,791)			(4,791)
Ending balance (in shares) at May. 31, 2024		32,563,000
Ending balance at May. 31, 2024	$ 1,095,354	$ 3	509,901	(160,080)	861,158	$ (115,628)
Treasury stock, ending balance (in shares) at May. 31, 2024						1,924,000
Beginning balance (in shares) at Aug. 31, 2024	30,635,556	32,571,000
Beginning balance at Aug. 31, 2024	$ 1,122,965	$ 3	514,542	(164,590)	890,272	$ (117,262)
Treasury stock, beginning balance (in shares) at Aug. 31, 2024	1,935,302					1,935,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						64,000
Purchase of treasury stock	$ (5,857)					$ (5,857)
Issuance of treasury stock (in shares)	(65,000)	(65,000)				(65,000)
Issuance of treasury stock	$ 0		(4,000)			$ 4,000
Issuance of restricted stock awards (in shares)		191,000
Forfeiture of restricted stock awards (in shares)		(9,000)
Stock-based compensation	13,806		13,806
Dividend paid to stockholders	(19,376)				(19,376)
Dividend payable to stockholders	(19,411)				(19,411)
Net income	116,346				116,346
Other comprehensive income (loss)	$ 5,720			5,720
Ending balance (in shares) at May. 31, 2025	30,753,891	32,688,000
Ending balance at May. 31, 2025	$ 1,214,193	$ 3	524,348	(158,870)	967,831	$ (119,119)
Treasury stock, ending balance (in shares) at May. 31, 2025	1,934,319					1,934,000
Beginning balance (in shares) at Feb. 28, 2025		32,690,000
Beginning balance at Feb. 28, 2025	$ 1,172,586	$ 3	519,564	(160,640)	932,673	$ (119,014)
Treasury stock, beginning balance (in shares) at Feb. 28, 2025						1,933,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)						1,000
Purchase of treasury stock	(105)					$ (105)
Issuance of treasury stock (in shares)		0
Issuance of treasury stock			0
Issuance of restricted stock awards (in shares)		2,000
Forfeiture of restricted stock awards (in shares)		(4,000)
Stock-based compensation	4,784		4,784
Net income	35,158				35,158
Other comprehensive income (loss)	$ 1,770			1,770
Ending balance (in shares) at May. 31, 2025	30,753,891	32,688,000
Ending balance at May. 31, 2025	$ 1,214,193	$ 3	$ 524,348	$ (158,870)	$ 967,831	$ (119,119)
Treasury stock, ending balance (in shares) at May. 31, 2025	1,934,319					1,934,000