Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Net sales
Net sales	$ 297,029	$ 257,246
Cost of sales
Cost of sales	149,663	141,377
Gross profit	147,366	115,869
Expenses:
Selling	40,063	38,411
General and administrative	49,378	55,287
Research and development	7,573	7,747
Total operating expenses	97,014	101,445
Income from operations	50,352	14,424
Interest expense, net	16,293	5,719
Income before income taxes	34,059	8,705
Income taxes	9,595	2,938
Net income	$ 24,464	$ 5,767
Earnings per common share:
Basic (in dollars per share)	$ 0.58	$ 0.14
Diluted (in dollars per share)	0.57	0.14
Dividends per common share (in dollars per share)	$ 0	$ 0
Product sales
Net sales
Net sales	$ 263,570	$ 225,678
Cost of sales
Cost of sales	129,655	120,586
Product service
Net sales
Net sales	33,459	31,568
Cost of sales
Cost of sales	$ 20,008	$ 20,791