Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Income Statement [Abstract]
Net sales	$ 453,163	$ 448,583	$ 895,744	$ 838,670
Cost of sales and distribution	401,469	357,911	790,607	668,431
Gross Profit	51,694	90,672	105,137	170,239
Selling and marketing expenses	21,568	21,608	44,555	41,506
General and administrative expenses	24,596	30,229	48,283	60,212
Restructuring charges, net	(3)	2,791	310	6,251
Operating Income	5,533	36,044	11,989	62,270
Interest expense, net	2,360	5,981	4,533	12,011
Other (income) expense, net	863	(981)	936	(2,669)
Income Before Income Taxes	2,310	31,044	6,520	52,928
Income tax expense	280	7,922	1,509	13,747
Net Income	$ 2,030	$ 23,122	$ 5,011	$ 39,181
Weighted Average Shares Outstanding
Basic (in shares)	16,567,391	16,992,297	16,614,112	16,964,565
Diluted (in shares)	16,605,911	17,047,296	16,662,791	17,036,652
Net earnings per share
Basic (in usd per share)	$ 0.12	$ 1.36	$ 0.30	$ 2.31
Diluted (in usd per share)	$ 0.12	$ 1.36	$ 0.30	$ 2.30