Income Taxes	3 Months Ended
Oct. 28, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company accounts for income taxes under the asset and liability method. This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and the tax bases of assets and liabilities. As discussed in Note 1, Basis of Presentation and Accounting Policies, the Company has adopted ASU 2015-17 on a prospective basis effective July 30, 2017. Under the amended guidance of ASU 2015-17, deferred tax liabilities and assets are solely classified as non-current in a consolidated statement of financial position. Under the prior guidance, approximately $28.2 million of deferred tax assets, net would have been classified as current within the condensed consolidated balance sheets as of October 28, 2017. The Company’s effective income tax rate differs from the statutory rate for the tax jurisdictions where it operates primarily as the result of the impact of non-deductible and non-taxable items, tax credits recognized in relation to pre-tax results, and the recognition of certain tax benefits from share-based award activities upon the adoption of ASU 2016-09, which reduced income tax expense by approximately $0.9 million for the three months ended October 28, 2017. Measurement of the Company’s tax position is based on applicable statutes, federal and state case law, and its interpretations of tax regulations. The Company is subject to federal income taxes in the United States and the income taxes of multiple state jurisdictions and in Canada. Amounts of pre-tax earnings related to Canadian operations for the three months ended October 28, 2017 and October 29, 2016 were not material. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or Canadian income tax examinations for fiscal years ended 2013 and prior. The Company believes its provision for income taxes is adequate; however, any assessment would affect the Company’s results of operations and cash flows. During fiscal 2016, the Company was notified by the Internal Revenue Service (“IRS”) that its federal income tax return for fiscal 2014 was selected for examination. The IRS completed its examination during 2017 with no proposed adjustments to the Company’s tax return. As of October 28, 2017 and July 29, 2017, the Company had total unrecognized tax benefits of $3.1 million resulting from uncertain tax positions. The Company’s effective tax rate will be reduced during future periods if it is determined these unrecognized tax benefits are realizable. The Company had approximately $1.2 million accrued for the payment of interest and penalties as of both October 28, 2017 and July 29, 2017. Interest expense related to unrecognized tax benefits for the Company for the three months ended October 28, 2017 and October 29, 2016 was not material.

Income Taxes

The Company accounts for income taxes under the asset and liability method. This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and the tax bases of assets and liabilities. As discussed in Note 1, Basis of Presentation and Accounting Policies, the Company has adopted ASU 2015-17 on a prospective basis effective July 30, 2017. Under the amended guidance of ASU 2015-17, deferred tax liabilities and assets are solely classified as non-current in a consolidated statement of financial position. Under the prior guidance, approximately $28.2 million of deferred tax assets, net would have been classified as current within the condensed consolidated balance sheets as of October 28, 2017.

The Company’s effective income tax rate differs from the statutory rate for the tax jurisdictions where it operates primarily as the result of the impact of non-deductible and non-taxable items, tax credits recognized in relation to pre-tax results, and the recognition of certain tax benefits from share-based award activities upon the adoption of ASU 2016-09, which reduced income tax expense by approximately $0.9 million for the three months ended October 28, 2017.

Measurement of the Company’s tax position is based on applicable statutes, federal and state case law, and its interpretations of tax regulations. The Company is subject to federal income taxes in the United States and the income taxes of multiple state jurisdictions and in Canada. Amounts of pre-tax earnings related to Canadian operations for the three months ended October 28, 2017 and October 29, 2016 were not material. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or Canadian income tax examinations for fiscal years ended 2013 and prior. The Company believes its provision for income taxes is adequate; however, any assessment would affect the Company’s results of operations and cash flows. During fiscal 2016, the Company was notified by the Internal Revenue Service (“IRS”) that its federal income tax return for fiscal 2014 was selected for examination. The IRS completed its examination during 2017 with no proposed adjustments to the Company’s tax return.

As of October 28, 2017 and July 29, 2017, the Company had total unrecognized tax benefits of $3.1 million resulting from uncertain tax positions. The Company’s effective tax rate will be reduced during future periods if it is determined these unrecognized tax benefits are realizable. The Company had approximately $1.2 million accrued for the payment of interest and penalties as of both October 28, 2017 and July 29, 2017. Interest expense related to unrecognized tax benefits for the Company for the three months ended October 28, 2017 and October 29, 2016 was not material.