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Income Taxes (Details 2) | 5 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Jul. 31, 2020 | Jul. 31, 2019 | Jul. 31, 2018
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract] |  |  |  |
Federal statutory rate | 35.00% | 21.00% | 21.00% | 26.90%
State income taxes, net of federal income tax benefit |  | 1.60% | 1.40% | 1.30%
International rate differential |  | 0.10% | 0.30% | (0.80%)
Compensation and fringe benefits |  | (11.20%) | (6.40%) | (3.50%)
GILTI, FDII, and transition tax |  | (0.003) | (0.007) | 0.022
Deferred tax remeasurement |  | 0.00% | 0.00% | (0.80%)
Other differences |  | 1.40% | 0.50% | 0.40%
Effective Income Tax Rate Reconciliation, Percent |  | 12.60% | 16.10% | 25.70%

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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=116825942&loc=d3e330036-122817 Reference 2: 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=84230637&loc=d3e32687-109319 + Details
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -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=116825942&loc=d3e330036-122817 + Details
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