CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023
Income Statement [Abstract]
Net sales	$ 2,078,485	$ 2,344,989	$ 5,929,823	$ 6,590,305
Costs and operating expenses:
Cost of goods sold	1,738,086	1,862,299	4,894,200	5,203,476
Selling, general and administrative expenses	167,975	163,742	497,951	470,902
Interest expense	12,117	8,878	35,751	31,868
Net costs and operating expenses	1,918,178	2,034,919	5,427,902	5,706,246
Earnings before income taxes	160,307	310,070	501,921	884,059
Income taxes	40,867	76,099	120,361	208,465
Net earnings	$ 119,440	$ 233,971	$ 381,560	$ 675,594
Earnings per share:
Basic (in USD per share)	$ 1.03	$ 2.00	$ 3.28	$ 5.76
Diluted (in USD per share)	$ 1.02	$ 1.98	$ 3.25	$ 5.69
Average basic shares outstanding (shares)	115,529,942	117,066,623	116,228,826	117,192,710
Average diluted shares outstanding (shares)	116,664,885	118,397,899	117,583,055	118,747,084