Income Taxes	6 Months Ended
Oct. 27, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 13. Income Taxes We calculate the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full fiscal year to “ordinary” income or loss (pre-tax income or loss excluding unusual or infrequently occurring discrete items) for the reporting period. Due to various factors and operating in multiple state and foreign jurisdictions, our effective tax rate is subject to fluctuation. We recorded an effective tax rate expense of 5.8 percent and 0.0 percent for the three and six months ended October 27, 2018, respectively, and an effective tax rate expense of 24.6 percent and 27.5 percent for the three and six months ended October 28, 2017, respectively. The decreases in the effective tax rates, as compared to the same prior year period, are due to tax credits proportionate to pre-tax book income, and a decrease in the federal statutory tax rate from 35 percent to 21 percent pursuant to the Tax Act. Pursuant to the Tax Act, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Act (SAB 118), which allows us to record provisional amounts during a measurement period not to extend beyond one year from the enactment date of December 22, 2017. The accounting for the deemed repatriation tax is provisional and incomplete due to continued guidance from the U.S. tax authority and our ongoing analysis of final year-end data and tax positions. This provisional estimate was included in our consolidated financial statements as of April 28, 2018. We did not make any measurement period adjustments during the first six months of fiscal 2019. We expect to complete the analysis within the measurement period in accordance with SAB 118. As of October 27, 2018, the accounting for the remeasurement of U.S. deferred tax assets was finalized, resulting in additional tax expense of $12. We have also elected to recognize tax resulting from any Global Intangible Low Taxed Income (GILTI) inclusion as a period cost if, and when, incurred. We have not previously provided deferred taxes on unremitted earnings attributable to foreign subsidiaries that have been considered to be reinvested indefinitely. The full effects of the Tax Act require a reassessment of previous indefinite reinvestment assertions with respect to certain jurisdictions. As of October 27, 2018, undistributed earnings of our foreign subsidiaries were considered to have been reinvested indefinitely. We are subject to U.S. federal income tax as well as income taxes of multiple state and foreign jurisdictions. Fiscal years 2015, 2016, 2017, and 2018 remain open to federal and state income tax examinations. Certain subsidiaries are also subject to income tax in several foreign jurisdictions which have open tax years varying by jurisdiction beginning in fiscal 2008. In the event of any future tax assessments, we have elected to record the income taxes and any related interest and penalties as income tax expense on our statement of operations. As of October 27, 2018, we had $3,360 of unrecognized tax benefits which would reduce our effective tax rate if recognized.

Note 13. Income Taxes

We calculate the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full fiscal year to “ordinary” income or loss (pre-tax income or loss excluding unusual or infrequently occurring discrete items) for the reporting period. Due to various factors and operating in multiple state and foreign jurisdictions, our effective tax rate is subject to fluctuation. We recorded an effective tax rate expense of 5.8 percent and 0.0 percent for the three and six months ended October 27, 2018, respectively, and an effective tax rate expense of 24.6 percent and 27.5 percent for the three and six months ended October 28, 2017, respectively. The decreases in the effective tax rates, as compared to the same prior year period, are due to tax credits proportionate to pre-tax book income, and a decrease in the federal statutory tax rate from 35 percent to 21 percent pursuant to the Tax Act.

Pursuant to the Tax Act, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Act (SAB 118), which allows us to record provisional amounts during a measurement period not to extend beyond one year from the enactment date of December 22, 2017. The accounting for the deemed repatriation tax is provisional and incomplete due to continued guidance from the U.S. tax authority and our ongoing analysis of final year-end data and tax positions. This provisional estimate was included in our consolidated financial statements as of April 28, 2018. We did not make any measurement period adjustments during the first six months of fiscal 2019. We expect to complete the analysis within the measurement period in accordance with SAB 118. As of October 27, 2018, the accounting for the remeasurement of U.S. deferred tax assets was finalized, resulting in additional tax expense of $12. We have also elected to recognize tax resulting from any Global Intangible Low Taxed Income (GILTI) inclusion as a period cost if, and when, incurred. We have not previously provided deferred taxes on unremitted earnings attributable to foreign subsidiaries that have been considered to be reinvested indefinitely. The full effects of the Tax Act require a reassessment of previous indefinite reinvestment assertions with respect to certain jurisdictions. As of October 27, 2018, undistributed earnings of our foreign subsidiaries were considered to have been reinvested indefinitely.

We are subject to U.S. federal income tax as well as income taxes of multiple state and foreign jurisdictions. Fiscal years 2015, 2016, 2017, and 2018 remain open to federal and state income tax examinations. Certain subsidiaries are also subject to income tax in several foreign jurisdictions which have open tax years varying by jurisdiction beginning in fiscal 2008. In the event of any future tax assessments, we have elected to record the income taxes and any related interest and penalties as income tax expense on our statement of operations.

As of October 27, 2018, we had $3,360 of unrecognized tax benefits which would reduce our effective tax rate if recognized.