CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Net sales	$ 275,927	$ 286,816	$ 824,104	$ 838,519
Cost of products sold	136,018	141,373	409,679	420,835
Gross margin	139,909	145,443	414,425	417,684
Operating expenses:
Research and development	9,950	8,865	28,577	26,531
Selling, general and administrative	98,409	105,794	291,128	306,678
Total operating expenses	108,359	114,659	319,705	333,209
Operating income	31,550	30,784	94,720	84,475
Other income (expense):
Investment and other income (expense)	453	721	560	(1,030)
Interest expense	(1,375)	(1,838)	(4,565)	(6,119)
Earnings before income taxes	30,628	29,667	90,715	77,326
Income tax expense	8,075	8,686	20,312	22,352
Net earnings	$ 22,553	$ 20,981	$ 70,403	$ 54,974
Weighted average common shares outstanding (in thousands):
Weighted average common shares outstanding, basic (in thousands):	51,227	50,251	50,972	50,602
Weighted average common shares outstanding, diluted (in thousands):	52,201	50,505	51,882	50,747
Class A nonvoting common stock
Earnings Per Share
Net earnings per share, basic	$ 0.44	$ 0.42	$ 1.38	$ 1.09
Net earnings per share, diluted	0.43	0.42	1.36	1.08
Dividends	$ 0.21	$ 0.20	$ 0.62	$ 0.61
Class B voting common stock
Other income (expense):
Earnings from continuing operations	$ (22,553)	$ 20,981	$ 69,601	$ 54,190
Earnings Per Share
Net earnings per share, basic	$ 0.44	$ 0.42	$ 1.37	$ 1.07
Net earnings per share, diluted	0.43	0.42	1.34	1.07
Dividends	$ 0.21	$ 0.20	$ 0.60	$ 0.59