Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2023	Jan. 31, 2023	Oct. 31, 2022	Jul. 31, 2022	Apr. 30, 2022	Jan. 31, 2022	Oct. 31, 2021	Jul. 31, 2021	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 1,304,102	$ 1,234,618	$ 1,430,979	$ 1,359,553	$ 1,288,653	$ 1,153,595	$ 1,150,551	$ 1,042,076	$ 5,329,252	$ 4,634,875	$ 3,298,823
Gross Profit	424,476	402,248	464,500	434,721	412,800	367,772	371,870	335,833	1,725,945	1,488,275	1,062,703
Net income	$ 75,593	$ 64,775	$ 103,153	$ 89,470	$ 76,496	$ 61,383	$ 74,361	$ 61,202	$ 332,991	$ 273,442	$ 105,560
Weighted average shares outstanding:
Basic (in shares)	41,239	41,578	42,232	42,549	42,977	43,094	43,135	43,089	41,904	43,075	42,765
Diluted (in shares)	41,913	42,232	42,887	43,317	43,776	43,945	43,894	43,972	42,592	43,898	43,343
Net income per share:
Basic (in dollars per share)	$ 1.83	$ 1.56	$ 2.44	$ 2.10	$ 1.78	$ 1.42	$ 1.72	$ 1.42	$ 7.95	$ 6.35	$ 2.47
Diluted (in dollars per share)	$ 1.80	$ 1.53	$ 2.41	$ 2.07	$ 1.75	$ 1.40	$ 1.69	$ 1.39	$ 7.82	$ 6.23	$ 2.44