Income Taxes (Notes)	6 Months Ended
Feb. 23, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We account for income taxes under ASC 740, Income Taxes. The objectives of accounting for income taxes are to recognize the amount of taxes payable or refundable for the current year and deferred tax liabilities and assets for the future tax consequences of events that have been recognized in our financial statements or tax returns. Our effective tax rate decreased to 18.4% for the six months ended February 23, 2019 from 29.5% for the six months ended February 24, 2018 due to the enactment of the 2017 Tax Cuts and Jobs Act ("Tax Act") on December 22, 2017 and certain favorable discrete items, primarily due to R&D-related tax credits, which totaled $2.5 million. ASU 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, provided guidance for companies that allowed for a measurement period of up to one year after the enactment date of the Tax Act to finalize the recording of the related tax impacts under ASC 740, Income Taxes. In accordance with this guidance, a company was required to reflect the income tax effect of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company's accounting for certain income tax effects of the Tax Act was incomplete, but it was able to determine a reasonable estimate, the company was required to record a provisional estimate in the financial statements. In accordance with ASC 740, we recorded non-cash provisional estimates to income tax expense in Fiscal 2018 as a result of revaluing all deferred tax assets and liabilities at the newly enacted Federal corporate income tax rate. We have not made any measurement period adjustments related to these items during the first six months of Fiscal 2019 and are complete in analyzing and recording all aspects of the enactment of the Tax Act. We file a U.S. Federal tax return as well as returns in various international and state jurisdictions. Although certain years are no longer subject to examination by the Internal Revenue Service ("IRS") and various state taxing authorities, net operating loss carryforwards generated in those years may still be adjusted upon examination by the IRS or state taxing authorities. As of February 23, 2019, our Federal returns from Fiscal 2015 to present continue to be subject to review by the IRS. With limited exception, our state returns from Fiscal 2014 to present continue to be subject to review by the state taxing jurisdictions. Several years may lapse before an uncertain tax position is audited and finally resolved, and it is difficult to predict the outcome of such audits. It is our policy to recognize interest and penalties accrued relative to unrecognized tax benefits in income tax expense. Total reserves for uncertain tax positions were not material.

Income Taxes

We account for income taxes under ASC 740, Income Taxes. The objectives of accounting for income taxes are to recognize the amount of taxes payable or refundable for the current year and deferred tax liabilities and assets for the future tax consequences of events that have been recognized in our financial statements or tax returns.

Our effective tax rate decreased to 18.4% for the six months ended February 23, 2019 from 29.5% for the six months ended February 24, 2018 due to the enactment of the 2017 Tax Cuts and Jobs Act ("Tax Act") on December 22, 2017 and certain favorable discrete items, primarily due to R&D-related tax credits, which totaled $2.5 million.

ASU 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, provided guidance for companies that allowed for a measurement period of up to one year after the enactment date of the Tax Act to finalize the recording of the related tax impacts under ASC 740, Income Taxes. In accordance with this guidance, a company was required to reflect the income tax effect of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company's accounting for certain income tax effects of the Tax Act was incomplete, but it was able to determine a reasonable estimate, the company was required to record a provisional estimate in the financial statements.

In accordance with ASC 740, we recorded non-cash provisional estimates to income tax expense in Fiscal 2018 as a result of revaluing all deferred tax assets and liabilities at the newly enacted Federal corporate income tax rate. We have not made any measurement period adjustments related to these items during the first six months of Fiscal 2019 and are complete in analyzing and recording all aspects of the enactment of the Tax Act.

We file a U.S. Federal tax return as well as returns in various international and state jurisdictions. Although certain years are no longer subject to examination by the Internal Revenue Service ("IRS") and various state taxing authorities, net operating loss carryforwards generated in those years may still be adjusted upon examination by the IRS or state taxing authorities. As of February 23, 2019, our Federal returns from Fiscal 2015 to present continue to be subject to review by the IRS. With limited exception, our state returns from Fiscal 2014 to present continue to be subject to review by the state taxing jurisdictions. Several years may lapse before an uncertain tax position is audited and finally resolved, and it is difficult to predict the outcome of such audits.

It is our policy to recognize interest and penalties accrued relative to unrecognized tax benefits in income tax expense. Total reserves for uncertain tax positions were not material.