CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Net sales	$ 277,227	$ 286,947
Cost of goods sold	141,799	145,542
Gross margin	135,428	141,405
Operating expenses:
Research and development	10,203	10,967
Selling, general and administrative	83,037	89,547
Total operating expenses	93,240	100,514
Operating income	42,188	40,891
Other income (expense):
Investment and other income	155	1,380
Interest expense	(106)	(701)
Income before income taxes and losses of unconsolidated affiliate	42,237	41,570
Income tax expense	8,582	4,072
Income (Loss) From Continuing Operations Before Income (Loss) From Equity Method Investments	33,655	37,498
Income (Loss) from Equity Method Investments	(174)	0
Net income	$ 33,481	$ 37,498
Weighted average common shares outstanding:
Weighted average common shares outstanding, basic (in thousands):	52,021	53,143
Weighted average common shares outstanding, diluted (in thousands):	52,292	53,736
Class A Nonvoting Common Stock
Earnings Per Share
Net income per share, basic	$ 0.64	$ 0.71
Net income per share, diluted	0.64	0.70
Dividends	0.22	0.22
Class B Voting Common Stock
Earnings Per Share
Net income per share, basic	0.63	0.69
Net income per share, diluted	0.62	0.68
Dividends	$ 0.20	$ 0.20