Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Income Statement [Abstract]
Net sales	$ 480,713	$ 459,736	$ 1,585,105	$ 1,355,480
Cost of sales and distribution	405,373	407,981	1,324,284	1,198,765
Gross profit	75,340	51,755	260,821	156,715
Selling and marketing expenses	21,364	23,383	71,781	67,755
General and administrative expenses	28,848	23,281	91,129	71,638
Restructuring charges, net	1,310	(127)	1,310	183
Operating income	23,818	5,218	96,601	17,139
Interest expense, net	4,303	2,668	12,778	7,201
Pension settlement, net	293	69,452	48	69,452
Other (income) expense, net	(411)	(335)	(1,082)	533
Income (loss) before income taxes	19,633	(66,567)	84,857	(60,047)
Income tax expense (benefit)	4,905	(17,310)	21,275	(15,801)
Net income (loss)	$ 14,728	$ (49,257)	$ 63,582	$ (44,246)
Weighted Average Shares Outstanding
Basic (in shares)	16,621,827	16,569,881	16,606,700	16,599,369
Diluted (in shares)	16,695,714	16,569,881	16,661,234	16,599,369
Net earnings (loss) per share
Basic (in usd per share)	$ 0.89	$ (2.97)	$ 3.83	$ (2.67)
Diluted (in usd per share)	$ 0.88	$ (2.97)	$ 3.82	$ (2.67)