Income Taxes	9 Months Ended
Jan. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective income tax rate for the three- and nine-month periods ended January 31, 2018 was 47.0% and 33.9%, respectively, compared with 33.2% and 34.5%, respectively, in the comparable periods in the prior fiscal year. The increase in the effective tax rate for the third quarter of fiscal 2018 as compared to the third quarter of fiscal 2017 was primarily due to transaction costs incurred due to the RSI Acquisition and an expected reduction in the amount of domestic production deduction expected for the year due to such acquisition in the quarter, partially offset by the overall benefit from the reduction in the tax rate enacted in connection with the Tax Cuts and Jobs Act of 2017 (H.R. 1) (the “Tax Act”). The Company recorded a net tax benefit of $1.2 million in the third quarter of fiscal 2018 in connection with the Tax Act enacted in December 2017. The decrease in the effective tax rate for the first nine months of fiscal 2018 as compared to the first nine months of fiscal 2017 was primarily due to the net benefit of $1.2 million from tax rate reduction enacted in connection with the Tax Act and an increase of $0.5 million in tax benefits from stock-based compensation transactions. As is discussed in Note C--Acquisition of RSI Home Products, Inc., a deferred tax liability of approximately $67.8 million was recorded as a result of the RSI Acquisition. Tax Cuts and Jobs Act of 2017 On December 22, 2017, the Tax Act was signed into law. The Tax Act significantly revises the future ongoing U.S. corporate income tax by, among other things, lowering the U.S. corporate federal income tax rate from 35% to 21% effective January 1, 2018. As a result, a proportional federal rate of 30.4% is applicable in the current fiscal year. The key impacts of the Tax Act for the three months ended January 31, 2018 were the re-measurement of deferred tax balances to the new corporate tax rate and the reduction of corporate federal tax rate applicable in the calculation of current tax expense from 35% to 30.4% in the current fiscal year. The Company is required to re-measure, through income tax expense, its deferred tax assets and liabilities using the enacted rate at which the items are expected to be recovered or settled. Due to the complexities associated with understanding and applying various aspects of the new law and quantifying or estimating amounts upon which calculations required to account for new law are based, the U.S. Securities and Exchange Commission (“SEC”) recognized that it may be difficult for many companies to complete the determination of all accounting effects of the new law within the available timeframe for issuing their financial statements for the period of enactment. As a result, the SEC provided guidance under SAB 118, permitting corporations to record and report specific items impacted by the new law on the basis of reasonable estimates if final amounts have not been determined and designate them as provisional amounts, or to continue to account for specific items under the previous law if it is not possible to develop reasonable estimates within the timeframe for issuance of the financial statements. In subsequent reporting periods, as the accounting for those items is finalized, companies are expected to record the appropriate adjustments to the initial accounting, removing the provisional designation on an item in the period that the accounting for that item is completed. A measurement period of no more than one year from the date of enactment of the new law is provided under the SEC guidance to complete all such adjustments. While the Company has not yet completed the assessment of the effects of the Tax Act, we are able to determine reasonable estimates for the impacts of the key items specified above, thus we reported provisional amounts for these items. The Company is still analyzing the impact of the provisions of the law on our deferred tax balances and refining our calculations which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. The provisional amount determined and recorded for the re-measurement of our deferred tax balances resulted in a net reduction in deferred assets of $1.6 million. While we have made a reasonable estimate of the impact of the federal corporate tax rate reduction, that estimate could change as we complete our analysis of all impacts of the Tax Act. We were unable to determine a reasonable estimate of the impact, if any, of the effect on our existing deferred tax assets related to executive compensation. We have continued to apply our existing accounting under ASC 740 for this matter.

Income Taxes

The effective income tax rate for the three- and nine-month periods ended January 31, 2018 was 47.0% and 33.9%, respectively, compared with 33.2% and 34.5%, respectively, in the comparable periods in the prior fiscal year. The increase in the effective tax rate for the third quarter of fiscal 2018 as compared to the third quarter of fiscal 2017 was primarily due to transaction costs incurred due to the RSI Acquisition and an expected reduction in the amount of domestic production deduction expected for the year due to such acquisition in the quarter, partially offset by the overall benefit from the reduction in the tax rate enacted in connection with the Tax Cuts and Jobs Act of 2017 (H.R. 1) (the “Tax Act”). The Company recorded a net tax benefit of $1.2 million in the third quarter of fiscal 2018 in connection with the Tax Act enacted in December 2017. The decrease in the effective tax rate for the first nine months of fiscal 2018 as compared to the first nine months of fiscal 2017 was primarily due to the net benefit of $1.2 million from tax rate reduction enacted in connection with the Tax Act and an increase of $0.5 million in tax benefits from stock-based compensation transactions. As is discussed in Note C--Acquisition of RSI Home Products, Inc., a deferred tax liability of approximately $67.8 million was recorded as a result of the RSI Acquisition.

Tax Cuts and Jobs Act of 2017

On December 22, 2017, the Tax Act was signed into law. The Tax Act significantly revises the future ongoing U.S. corporate income tax by, among other things, lowering the U.S. corporate federal income tax rate from 35% to 21% effective January 1, 2018. As a result, a proportional federal rate of 30.4% is applicable in the current fiscal year.

The key impacts of the Tax Act for the three months ended January 31, 2018 were the re-measurement of deferred tax balances to the new corporate tax rate and the reduction of corporate federal tax rate applicable in the calculation of current tax expense from 35% to 30.4% in the current fiscal year. The Company is required to re-measure, through income tax expense, its deferred tax assets and liabilities using the enacted rate at which the items are expected to be recovered or settled.

Due to the complexities associated with understanding and applying various aspects of the new law and quantifying or estimating amounts upon which calculations required to account for new law are based, the U.S. Securities and Exchange Commission (“SEC”) recognized that it may be difficult for many companies to complete the determination of all accounting effects of the new law within the available timeframe for issuing their financial statements for the period of enactment. As a result, the SEC provided guidance under SAB 118, permitting corporations to record and report specific items impacted by the new law on the basis of reasonable estimates if final amounts have not been determined and designate them as provisional amounts, or to continue to account for specific items under the previous law if it is not possible to develop reasonable estimates within the timeframe for issuance of the financial statements. In subsequent reporting periods, as the accounting for those items is finalized, companies are expected to record the appropriate adjustments to the initial accounting, removing the provisional designation on an item in the period that the accounting for that item is completed. A measurement period of no more than one year from the date of enactment of the new law is provided under the SEC guidance to complete all such adjustments.

While the Company has not yet completed the assessment of the effects of the Tax Act, we are able to determine reasonable estimates for the impacts of the key items specified above, thus we reported provisional amounts for these items. The Company is still analyzing the impact of the provisions of the law on our deferred tax balances and refining our calculations which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. The provisional amount determined and recorded for the re-measurement of our deferred tax balances resulted in a net reduction in deferred assets of $1.6 million. While we have made a reasonable estimate of the impact of the federal corporate tax rate reduction, that estimate could change as we complete our analysis of all impacts of the Tax Act.

We were unable to determine a reasonable estimate of the impact, if any, of the effect on our existing deferred tax assets related to executive compensation. We have continued to apply our existing accounting under ASC 740 for this matter.