Income Taxes	9 Months Ended
Income Taxes	Apr. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 9 – Income Taxes The Company applies the provisions of the accounting standard for uncertain tax positions to its income taxes. For benefits to be realized, a tax position must be more likely than not to be sustained upon examination. The amount recognized is measured as the largest amount of benefit that is greater than 50% likely of being realized upon ultimate settlement. On December 22, 2017 legislation, commonly referred to as the Tax Cuts and Jobs Act (the “Act”), was enacted. The Act included a one-time tax on accumulated unremitted earnings of our foreign subsidiaries (“Transition Tax”). SEC Staff Accounting Bulletin No. 118 allows the use of provisional amounts (reasonable estimates) if accounting for the income tax effects of the Act has not been completed. Provisional amounts must be adjusted within one year from the enactment date of the Act. As of July 31 2018, the Company recorded a $12.4 million provisional Transition Tax charge. No adjustment to the provisional Transition Tax charge was made in the first quarter of fiscal year 2019. The Company completed its accounting for the tax effects of the enactment of the Tax Act during the three months ended January 31, 2019, and recorded a discrete decrease in tax expense of $1.1 million, whose effect on the Company’s effective tax rate was immaterial for the three months ended January 31, 2019. The Act reduced the U.S. federal statutory tax rate from 35.0% to 21.0%, effective January 1, 2018, which resulted in a fiscal year 2018 U.S. federal statutory tax rate of 26.9%. The Company’s U.S. federal statutory tax rate for fiscal year 2019 is 21.0%. The Act contains Global Intangible Low-Taxed Income (“GILTI”) provisions, which first impact the Company in fiscal year 2019. The GILTI provisions effectively subject income earned by the Company’s foreign subsidiaries to current U.S. tax at a rate of 10.5%, less foreign tax credits. Under U.S. GAAP the Company can make an accounting policy election to either recognize deferred taxes for temporary differences expected to impact GILTI in future years or provide for tax expense related to GILTI in the year the tax is incurred as a period expense. The Company has elected to treat tax generated by GILTI provisions as a period expense. The Act also includes a favorable tax treatment for certain Foreign Derived Intangible Income (“FDII”), effective for the Company starting August 1, 2018. The Company’s provisional estimate for both GILTI and FDII did not materially impact the effective income tax rate or income tax expense for the three or nine months ended April 30, 2019. As of April 30, 2019, the gross amounts of the Company’s liabilities for unrecognized tax benefits of $33.6 million, including interest and penalties, were classified as long-term income taxes payable in the accompanying consolidated balance sheets. Over the next twelve months, the Company’s existing positions will continue to generate an increase in liabilities for unrecognized tax benefits, as well as a likely decrease in liabilities as a result of the lapse of the applicable statute of limitations and the conclusion of income tax audits. The expected decrease in liabilities relating to unrecognized tax benefits will have a positive effect on the Company’s consolidated results of operations and financial position when realized. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. The Company files income tax returns in the U.S. federal jurisdiction, various states and foreign jurisdictions. The Company is currently under examination by certain taxing authorities in the U.S. for fiscal years between 2014 and 2017. At this time, the Company does not believe that the outcome of any examination will have a material impact on the Company’s consolidated results of operations and financial position. The Company’s effective income tax rates were 5.6% and 25.6% for the three months ended April 30, 2019 and 2018, respectively, and 15.4% and 28.3% for the nine months ended April 30, 2019 and 2018, respectively. The effective tax rate for the three months ended April 30, 2019 was calculated based on the 21.0% U.S. federal statutory rate. For the three months ended April 30, 2018, a fiscal year 2018 federal statutory rate of 26.9% was used. The effective tax rates for the three and nine months ended April 30, 2019, were favorably impacted by $10.2 million of discrete tax items related to amending previously filed income tax returns. The effective tax rates in the current and prior year were also impacted from the result of recognizing excess tax benefits from the exercise of employee stock options of $29.1 million and $3.1 million for the three months ended April 30, 2019 and 2018, respectively, and $34.1 million and $9.4 million for the nine months ended April 30, 2019 and 2018, respectively.