Condensed Consolidated Statements of Income and Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Net sales	$ 799,963	$ 761,424
Cost of products sold	694,780	669,121
Gross profit	105,183	92,303
Selling, general and administrative expenses	48,341	46,702
Amortization of intangible assets	2,838	2,634
Impairment charges	710
Interest income	510	776
Interest expense	5	3
Other income, net	642	428
Income from continuing operations before income taxes	54,441	44,168
Income taxes	18,047	15,419
Net income from continuing operations	36,394	28,749
Income from discontinued operations, net of income taxes	4,714	2,239
Net Income	41,108	30,988
Weighted average common shares outstanding:
Basic	53,205,004	52,928,467
Diluted	53,299,476	53,035,582
Earnings per common share from continuing operations:
Basic	$ 0.68	$ 0.54
Diluted	$ 0.68	$ 0.54
Earnings per common share from discontinued operations:
Basic	$ 0.09	$ 0.05
Diluted	$ 0.09	$ 0.04
Earnings per common share:
Basic	$ 0.77	$ 0.59
Diluted	$ 0.77	$ 0.58
Regular dividend declared and paid per common share	$ 0.23	$ 0.18
Special dividend declared per common share	$ 1.00
Net income	41,108	30,988
Unrealized appreciation on investments, net of tax of $12 and $1	22	1
Comprehensive income	$ 41,130	$ 30,989