Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Net sales	$ 1,284,054	$ 1,174,255	$ 3,289,476	$ 2,948,663
Cost of products sold	1,082,117	1,007,654	2,786,501	2,562,397
Gross profit	201,937	166,601	502,975	386,266
Selling, general and administrative expenses	80,833	68,940	216,653	181,231
Amortization of intangible assets	5,780	3,950	17,662	11,606
Impairment charges	0		9,113
Interest income	230	287	473	994
Interest expense	166		508	1
Other income, net	895	563	350	982
Income from continuing operations before income taxes	116,283	94,561	259,862	195,404
Income taxes	37,090	31,009	84,686	62,384
Net income from continuing operations	79,193	63,552	175,176	133,020
Loss from discontinued operations, net of income taxes	(611)	(707)	(1,429)	(2,602)
Net income and comprehensive income	$ 78,582	$ 62,845	$ 173,747	$ 130,418
Weighted-average common shares outstanding:
Basic	52,474,801	53,380,651	52,453,025	53,363,872
Diluted	52,601,673	53,495,499	52,569,294	53,461,470
Earnings per common share from continuing operations:
Basic	$ 1.51	$ 1.19	$ 3.34	$ 2.49
Diluted	1.51	1.19	3.33	2.49
Loss per common share from discontinued operations:
Basic	(0.01)	(0.01)	(0.03)	(0.05)
Diluted	(0.02)	(0.02)	(0.02)	(0.05)
Earnings per common share:
Basic	1.50	1.18	3.31	2.44
Diluted	1.49	1.17	3.31	2.44
Regular dividends declared and paid per common share	$ 0.30	$ 0.27	$ 0.90	$ 0.81