Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2025	Jan. 31, 2025	Oct. 31, 2024	Jul. 31, 2024	Apr. 30, 2024	Jan. 31, 2024	Oct. 31, 2023	Jul. 31, 2023	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 1,333,796	$ 1,260,710	$ 1,470,776	$ 1,448,456	$ 1,413,029	$ 1,258,348	$ 1,420,930	$ 1,409,600	$ 5,513,738	$ 5,501,907	$ 5,329,252
Gross Profit	416,244	393,090	461,127	451,563	451,198	414,720	458,629	450,554	1,722,024	1,775,101	1,725,945
Net Income (Loss)	$ 26,094	$ (21,409)	$ 53,536	$ 57,248	$ 56,387	$ 51,905	$ 80,957	$ 86,830	$ 115,469	$ 276,079	$ 332,991
Weighted average shares outstanding:
Basic (in shares)	38,317	38,708	39,126	39,542	39,830	39,864	40,466	40,749	38,928	40,229	41,904
Diluted (in shares)	38,813	38,708	39,703	40,226	40,539	40,512	41,088	41,477	39,503	40,906	42,592
Net income (loss) per share:
Basic (in dollars per share)	$ 0.68	$ (0.55)	$ 1.37	$ 1.45	$ 1.42	$ 1.30	$ 2.00	$ 2.13	$ 2.97	$ 6.86	$ 7.95
Diluted (in dollars per share)	$ 0.67	$ (0.55)	$ 1.35	$ 1.42	$ 1.39	$ 1.28	$ 1.97	$ 2.09	$ 2.92	$ 6.75	$ 7.82
Impairment of goodwill									$ 42,454	$ 0	$ 0
Gain on sale of business									$ 7,393	$ 0	$ 0