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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2018 | Jan. 31, 2017 | Apr. 30, 2018 | Dec. 29, 2017
Income Tax [Line Items] |  |  |  |  |  |
Effective income tax rate | 47.00% | 33.20% | 33.90% | 34.50% |  |
Tax Cuts and Jobs Act of 2017, net tax benefit | $ 1,200 |  |  |  |  |
Excess tax benefit related to stock-based compensation |  |  | $ 500 |  |  |
Effective income tax rate, proportional federal rate |  |  | 34.40% | 40.40% |  |
Tax Cuts and Jobs Act of 2017, incomplete accounting, change in tax rate, deferred tax asset, provisional income tax expense |  |  | $ 1,600 |  |  |
Scenario, forecast |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |
Effective income tax rate, proportional federal rate |  |  |  |  | 30.40% |
RSI Home Products, Inc. |  |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |  |
Deferred income taxes | $ 67,800 |  | $ 67,800 |  |  | $ 67,478

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- Definition Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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