CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Net sales
Product sales	$ 684,678	$ 584,750	$ 493,656
Product service	85,479	80,005	71,348
Total net sales	770,157	664,755	565,004
Cost of sales
Product sales	343,641	300,704	260,903
Product service	59,356	54,865	50,634
Total cost of sales	402,997	355,569	311,537
Gross profit	367,160	309,186	253,467
Expenses:
Selling	116,113	99,062	80,787
General and administrative	122,270	97,463	77,897
Research and development	18,367	15,410	14,022
Total operating expenses	256,750	211,935	172,706
Income from operations	110,410	97,251	80,761
Interest expense, net	4,303	3,320	2,364
Other income	(126)	0	0
Loss on sale of business	0	0	2,206
Income before income taxes	106,233	93,931	76,191
Income taxes	34,855	33,978	28,238
Net income	$ 71,378	$ 59,953	$ 47,953
Earnings per common share:
Basic (in dollars per share)	$ 1.71	$ 1.44	$ 1.16
Diluted (in dollars per share)	1.71	1.44	1.15
Dividends per common share (in dollars per share)	$ 0.14	$ 0.12	$ 0.10