CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Net sales	$ 377,065	$ 331,983
Cost of goods sold	187,376	160,264
Gross margin	189,689	171,719
Operating expenses:
Research and development	18,921	15,702
Selling, general and administrative	111,846	96,287
Total operating expenses	130,767	111,989
Operating income	58,922	59,730
Other income (expense):
Investment and other income	1,234	438
Interest expense	(1,356)	(766)
Income before income taxes	58,800	59,402
Income tax expense	12,017	12,161
Net income	$ 46,783	$ 47,241
Weighted average common shares outstanding:
Basic	47,732	48,505
Diluted	48,217	48,811
Class A Nonvoting Common Stock
Earnings Per Share
Basic	$ 0.98	$ 0.97
Diluted	0.97	0.97
Class B Voting Common Stock
Earnings Per Share
Basic	0.96	0.96
Diluted	$ 0.95	$ 0.95