CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Net sales	$ 1,513,605	$ 1,341,393	$ 1,331,863
Cost of goods sold	752,783	653,509	674,588
Gross margin	760,822	687,884	657,275
Operating expenses:
Research and development	79,889	67,748	61,365
Selling, general and administrative	444,295	376,722	370,697
Total operating expenses	524,184	444,470	432,062
Operating income	236,638	243,414	225,213
Other income (expense):
Investment and other income	5,206	7,553	4,022
Interest expense	(4,747)	(3,126)	(3,539)
Income before income taxes	237,097	247,841	225,696
Income tax expense	47,841	50,626	50,839
Net income	$ 189,256	$ 197,215	$ 174,857	$ 149,979	$ 129,659
Weighted average common shares outstanding:
Basic	47,641	48,119	49,591
Diluted	48,092	48,496	49,869
Class A Nonvoting Common Stock
Earnings per share:
Basic	$ 3.97	$ 4.10	$ 3.53
Diluted	3.94	4.07	3.51
Class B Voting Common Stock
Earnings per share:
Basic	3.96	4.08	3.51
Diluted	$ 3.92	$ 4.05	$ 3.49