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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 27, 2019 | Apr. 28, 2018 | Apr. 29, 2017 | Apr. 30, 2016
Income from continuing operations before income taxes |  |  |  |
United States |  | $ 111,516 | $ 122,196 | $ 115,750
Foreign |  | 17,374 | 8,544 | 9,293
Income before income taxes |  | 128,890 | 130,740 | 125,043
Federal: |  |  |  |
- current |  | 21,206 | 35,606 | 32,403
- deferred |  | 16,401 | 2,349 | 3,559
State: |  |  |  |
- current |  | 4,886 | 5,194 | 4,750
- deferred |  | 1,075 | (1,703) | 859
Foreign: |  |  |  |
- current |  | 3,820 | 2,388 | 2,345
- deferred |  | (93) | (78) | 164
Total income tax expense |  | $ 47,295 | $ 43,756 | $ 44,080
Reconciliation of effective tax rate as it differs from the U.S. federal income tax rate |  |  |  |
Statutory tax rate (as a percent) |  | 30.40% | 35.00% | 35.00%
Increase (reduction) in income taxes resulting from: |  |  |  |
Re-measurement of deferred taxes for changes in statutory U.S. tax rate (as a percent) |  | 7.80% |  |
State income taxes, net of federal benefit (as a percent) |  | 3.30% | 2.70% | 3.40%
U.S. manufacturing benefit (as a percent) |  | (1.50%) | (2.40%) | (2.50%)
Change in valuation allowance (as a percent) |  | (0.30%) | (1.00%) | (0.30%)
U.S. research tax credits (as a percent) |  | (1.90%) |  |
Miscellaneous items (as a percent) |  | (1.10%) | (0.80%) | (0.30%)
Effective tax rate (as a percent) |  | 36.70% | 33.50% | 35.30%
Charge recorded to reflect net effect of the Tax Act |  | $ 10,200 |  |
Deferred tax charge from revaluing net U.S. deferred tax assets |  | 10,000 |  |
Provisional tax charge related to the one-time transition tax |  | $ 200 |  |
Effect rate of transition tax related to liquid assets (as a percent) |  | 15.50% |  |
Effect rate of transition tax related to remaining unremitted foreign earnings and profit (as a percent) |  | 8.00% |  |
Undistributed earnings, reinvested |  | $ 45,100 |  |
Potential deferred tax attributable to undistributed foreign earnings |  | 2,600 |  |
Assets |  |  |  |
Deferred and other compensation |  | 18,326 | $ 26,689 |
State income tax - net operating losses, credits and other |  | 5,050 | 4,927 |
Warranty |  | 5,348 | 8,261 |
Rent |  | 2,971 | 4,768 |
Workers' compensation |  | 2,714 | 3,707 |
Employee benefits |  | 2,343 | 3,752 |
Pension |  |  | 1,299 |
Other |  |  | 3,364 |
Valuation allowance |  | (1,224) | (1,786) |
Total deferred tax assets |  | 35,528 | 54,981 |
Liabilities |  |  |  |
Property, plant and equipment |  | (7,684) | (8,453) |
Inventory |  | (1,531) | (3,052) |
Goodwill and other intangibles |  | (3,575) | (3,345) |
Pension |  | (1,230) |  |
Other |  | (243) |  |
Net deferred tax assets |  | 21,265 | $ 40,131 |
Deferred tax assets associated with loss carryforwards |  |  |  |
Various U.S. state net operating losses (excluding federal tax effect) |  | 4,804 |  |
Foreign capital losses |  | 17 |  |
Future taxable income needed to fully recover net deferred tax assets |  | $ 72,000 |  |
Forecast |  |  |  |
Reconciliation of effective tax rate as it differs from the U.S. federal income tax rate |  |  |  |
Statutory tax rate (as a percent) | 21.00% |  |  |

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