Income Taxes	3 Months Ended
Nov. 30, 2019
Income Taxes [Abstract]
Income Taxes	Note 14. Income Taxes The Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes. Certain significant or unusual items are separately recognized in the quarter in which they occur and can be a source of variability in the effective tax rates from quarter to quarter. The provision for income taxes was 14.7% and 17.6% of income before income taxes for the three months ended November 30, 2019 and 2018, respectively. The decrease in the effective income tax rate from period to period was primarily due to an increase in excess tax benefits from settlements of stock-based equity awards that are recognized in the provision for income taxes, as well as a nonrecurring benefit from the release of liabilities associated with unrecognized tax benefits that resulted from the expiration of statutes. The Company is subject to taxation in the U.S. and in various state and foreign jurisdictions. Due to expired statutes, the Company’s federal income tax returns for years prior to fiscal year 2017 are not subject to examination by the U.S. Internal Revenue Service. Generally, for the majority of state and foreign jurisdictions where the Company does business, periods prior to fiscal year 2016 are no longer subject to examination. Estimated unrecognized tax benefits related to income tax positions may be affected by the resolution of tax examinations or expiring statutes of limitation within the next twelve months were not significant. Audit outcomes and the timing of settlements are subject to significant uncertainty.

Income Taxes

3 Months Ended

Nov. 30, 2019

Note 14. Income Taxes

The Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes. Certain significant or unusual items are separately recognized in the quarter in which they occur and can be a source of variability in the effective tax rates from quarter to quarter.

The provision for income taxes was 14.7% and 17.6% of income before income taxes for the three months ended November 30, 2019 and 2018, respectively. The decrease in the effective income tax rate from period to period was primarily due to an increase in excess tax benefits from settlements of stock-based equity awards that are recognized in the provision for income taxes, as well as a nonrecurring benefit from the release of liabilities associated with unrecognized tax benefits that resulted from the expiration of statutes.

The Company is subject to taxation in the U.S. and in various state and foreign jurisdictions. Due to expired statutes, the Company’s federal income tax returns for years prior to fiscal year 2017 are not subject to examination by the U.S. Internal

Revenue Service. Generally, for the majority of state and foreign jurisdictions where the Company does business, periods prior to fiscal year 2016 are no longer subject to examination. Estimated unrecognized tax benefits related to income tax positions may be affected by the resolution of tax examinations or expiring statutes of limitation within the next twelve months were not significant. Audit outcomes and the timing of settlements are subject to significant uncertainty.