CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2026	Jan. 31, 2025
Net sales	$ 384,137	$ 356,675	$ 789,424	$ 733,740
Cost of goods sold	189,743	180,832	386,198	368,208
Gross margin	194,394	175,843	403,226	365,532
Operating expenses:
Research and development	24,309	18,723	47,601	37,644
Selling, general and administrative	107,895	105,886	225,463	217,732
Total operating expenses	132,204	124,609	273,064	255,376
Operating income	62,190	51,234	130,162	110,156
Other income (expense):
Investment and other income	805	2,125	2,517	3,359
Interest expense	(990)	(1,312)	(2,198)	(2,668)
Income before income taxes	62,005	52,047	130,481	110,847
Income tax expense	13,954	11,713	28,494	23,730
Net income	$ 48,051	$ 40,334	$ 101,987	$ 87,117
Weighted average common shares outstanding:
Basic	47,310	47,851	47,291	47,792
Diluted	47,738	48,306	47,734	48,261
Class A Nonvoting Common Stock
Earnings Per Share
Basic	$ 1.02	$ 0.84	$ 2.16	$ 1.82
Diluted	1.01	0.83	2.14	1.81
Class B Voting Common Stock
Earnings Per Share
Basic	1.02	0.84	2.14	1.81
Diluted	$ 1.01	$ 0.83	$ 2.12	$ 1.79