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Income Taxes (Schedule Of Temporary Differences That Give Rise To Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands | Jul. 31, 2015 | Jul. 31, 2014
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Income Tax Disclosure [Abstract] |  |
Accrued expenses | $ 10,566 | $ 11,118
Compensation and retirement plans | 39,090 | 32,317
NOL and tax credit carryforwards | 4,353 | 3,471
LIFO and inventory reserves | 6,891 | 5,482
Other | 4,993 | 4,470
Deferred tax assets, gross | 65,893 | 56,858
Valuation allowance | (2,737) | (3,471)
Net deferred tax assets | 63,156 | 53,387
Depreciation and amortization | (50,628) | (49,901)
Other | (2,359) | (1,025)
Deferred tax liabilities | (52,987) | (50,926)
Prepaid tax assets | 4,421 | 4,392
Net tax asset | $ 14,590 | $ 6,853

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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