Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2025	Jan. 31, 2024
Income Statement [Abstract]
Total revenue	$ 3,903,633	$ 3,329,247	$ 11,948,141	$ 11,262,898
Cost of goods sold (exclusive of depreciation and amortization, shown separately below)	2,991,065	2,542,724	9,121,758	8,713,060
Operating expenses	670,200	568,908	1,889,353	1,709,466
Depreciation and amortization	105,203	88,950	296,204	257,453
Interest, net	29,415	14,146	56,035	38,947
Income before income taxes	107,750	114,519	584,791	543,972
Federal and state income taxes	20,653	27,586	136,578	129,020
Net income	$ 87,097	$ 86,933	$ 448,213	$ 414,952
Net income per common share
Basic (in dollars per share)	$ 2.35	$ 2.34	$ 12.08	$ 11.15
Diluted (in dollars per share)	$ 2.33	$ 2.33	$ 12.01	$ 11.09
Basic weighted average shares outstanding (in shares)	37,125,570	37,100,143	37,112,506	37,210,007
Plus effect of stock compensation (in shares)	236,486	235,940	213,474	199,531
Diluted weighted average shares outstanding (in shares)	37,362,056	37,336,083	37,325,980	37,409,538