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Income Taxes (Reconciliation Of Effective Income Tax Rate And Effective Rate From Continuing Operation) (Details) | 12 Months Ended
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Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2020
Income Tax Disclosure [Abstract] |  |  |
At U.S. federal income tax rate | 21.00% | 21.00% | 21.00%
State income tax, net of federal benefit | 3.80% | 4.20% | 3.50%
Change in uncertain tax positions | (1.20%) | (3.50%) | (3.80%)
Excess tax benefits related to stock-based compensation | (3.60%) | (14.30%) | (7.10%)
Impacts of the Tax Act and other legislative changes | 0.00% | 0.00% | (3.20%)
Noncontrolling interests | (1.20%) | 0.80% | (2.40%)
Foreign rate differential | 0.10% | (5.00%) | (2.40%)
Taxes related to prior year filings | 0.30% | (2.90%) | 0.00%
Other | 0.20% | 0.30% | 0.70%
Effective tax rate | 19.40% | 0.60% | 6.30%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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