Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Income Statement [Abstract]
Net sales	$ 459,736	$ 431,954	$ 1,355,480	$ 1,270,624
Cost of sales and distribution	407,916	354,458	1,198,523	1,022,889
Gross Profit	51,820	77,496	156,957	247,735
Selling and marketing expenses	23,453	21,862	68,008	63,368
General and administrative expenses	23,270	26,202	71,553	86,414
Restructuring charges, net	(127)	(847)	183	5,404
Operating Income	5,224	30,279	17,213	92,549
Interest expense, net	2,668	5,746	7,201	17,757
Pension settlement	69,452	0	69,452	0
Other (income) expense, net	(329)	(259)	607	(2,928)
Income (Loss) Before Income Taxes	(66,567)	24,792	(60,047)	77,720
Income tax expense (benefit)	(17,310)	6,347	(15,801)	20,094
Net Income (Loss)	$ (49,257)	$ 18,445	$ (44,246)	$ 57,626
Weighted Average Shares Outstanding
Basic (in shares)	16,569,881	16,994,975	16,599,369	16,974,701
Diluted (in shares)	16,569,881	17,047,211	16,599,369	17,036,586
Net earnings (loss) per share
Basic (in usd per share)	$ (2.97)	$ 1.09	$ (2.67)	$ 3.39
Diluted (in usd per share)	$ (2.97)	$ 1.08	$ (2.67)	$ 3.38