Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Jul. 31, 2021	Jul. 31, 2020
Income Statement [Abstract]
Total revenue	[1]	$ 3,181,994	$ 2,105,021
Cost of goods sold (exclusive of depreciation and amortization, shown separately below)	[1]	2,458,107	1,481,518
Operating expenses		478,928	386,088
Depreciation and amortization		75,888	65,820
Interest, net		13,730	13,407
Income before income taxes		155,341	158,188
Federal and state income taxes		36,182	37,596
Net income		$ 119,159	$ 120,592
Net income per common share
Basic (in dollars per share)		$ 3.21	$ 3.26
Diluted (in dollars per share)		$ 3.19	$ 3.24
Basic weighted average shares outstanding (in shares)		37,126,060	36,971,376
Plus effect of stock compensation (in shares)		209,377	270,797
Diluted weighted average shares outstanding (in shares)		37,335,437	37,242,173
Dividends declared per share (in dollars per share)		$ 0.34	$ 0.32
Excise taxes		$ 338,299	$ 259,539

[1] Includes excise taxes of: $249,678; $2270,023; $784,950; and $833,750