Condensed Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Net sales	$ 635,330	$ 636,605	$ 1,435,293	$ 1,398,029
Cost of products sold	565,003	569,087	1,259,783	1,238,208
Gross profit	70,327	67,518	175,510	159,821
Selling, general and administrative expenses	43,766	41,634	92,107	88,336
Amortization of intangible assets	3,226	2,623	6,064	5,257
Impairment charges			710
Interest income	391	733	901	1,509
Interest expense	2	2	7	5
Other income, net	178	466	820	894
Income from continuing operations before income taxes	23,902	24,458	78,343	68,626
Income taxes	6,684	5,439	24,731	20,858
Net income from continuing operations	17,218	19,019	53,612	47,768
Income (loss) from discontinued operations, net of income taxes	(1,026)	877	3,688	3,116
Net Income	16,192	19,896	57,300	50,884
Weighted average common shares outstanding:
Basic	53,289,626	53,002,106	53,247,315	52,965,286
Diluted	53,353,027	53,116,389	53,326,251	53,075,985
Earnings per common share from continuing operations:
Basic	$ 0.32	$ 0.36	$ 1.01	$ 0.90
Diluted	$ 0.32	$ 0.36	$ 1.01	$ 0.90
Earnings (loss) per common share from discontinued operations:
Basic	$ (0.02)	$ 0.02	$ 0.07	$ 0.06
Diluted	$ (0.02)	$ 0.01	$ 0.06	$ 0.06
Earnings per common share:
Basic	$ 0.30	$ 0.38	$ 1.08	$ 0.96
Diluted	$ 0.30	$ 0.37	$ 1.07	$ 0.96
Net income	16,192	19,896	57,300	50,884
Unrealized appreciation on investments, net of tax		16	22	17
Comprehensive income	$ 16,192	$ 19,912	$ 57,322	$ 50,901
Regular Dividend
Earnings per common share:
Dividends paid per common share	$ 0.23	$ 0.18	$ 0.46	$ 0.36
Special Dividend
Earnings per common share:
Dividends paid per common share	$ 1.00	$ 1.50	$ 1.00	$ 1.50