Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Income Statement [Abstract]
Total revenue	$ 3,869,251	$ 4,454,644
Cost of goods sold (exclusive of depreciation and amortization, shown separately below)	2,991,497	3,618,394
Operating expenses	560,855	543,271
Depreciation and amortization	82,905	76,295
Interest, net	12,495	13,816
Income before income taxes	221,499	202,868
Federal and state income taxes	52,262	49,936
Net income	$ 169,237	$ 152,932
Net income per common share
Basic (in dollars per share)	$ 4.54	$ 4.11
Diluted (in dollars per share)	$ 4.52	$ 4.09
Basic weighted average shares outstanding (in shares)	37,300,952	37,222,943
Plus effect of stock compensation (in shares)	155,187	186,762
Diluted weighted average shares outstanding (in shares)	37,456,139	37,409,705
Dividends declared per share (in dollars per share)	$ 0.43	$ 0.38