CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Net sales
Product sales	$ 187,965	$ 166,901
Product service	24,801	20,824
Total net sales	212,766	187,725
Cost of sales
Product sales	95,099	83,616
Product service	17,008	14,602
Total cost of sales	112,107	98,218
Gross profit	100,659	89,507
Expenses:
Selling	31,600	27,893
General and administrative	32,096	30,003
Research and development	5,329	4,548
Total operating expenses	69,025	62,444
Income from operations	31,634	27,063
Interest expense, net	1,189	1,093
Other income	(1,138)	0
Income before income taxes	31,583	25,970
Income taxes	8,654	7,170
Net income	$ 22,929	$ 18,800
Earnings per common share:
Basic (in dollars per share)	$ 0.55	$ 0.45
Diluted (in dollars per share)	0.55	0.45
Dividends declared per common share (in dollars per share)	$ 0	$ 0.07