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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 27, 2019 | Apr. 28, 2018 | Apr. 29, 2017
Income Taxes |  |  |
Estimated effects of the transition tax | $ 200 |  |
Income from continuing operations before income taxes |  |  |
United States | 73,058 | $ 111,516 | $ 122,196
Foreign | 22,269 | 17,374 | 8,544
Income before income taxes | 95,327 | 128,890 | 130,740
Federal: |  |  |
- current | 17,629 | 21,206 | 35,606
- deferred | (2,649) | 16,401 | 2,349
State: |  |  |
- current | 6,199 | 4,886 | 5,194
- deferred | (933) | 1,075 | (1,703)
Foreign: |  |  |
- current | 4,919 | 3,820 | 2,388
- deferred | 21 | (93) | (78)
Total income tax expense | $ 25,186 | $ 47,295 | $ 43,756
Reconciliation of effective tax rate as it differs from the U.S. federal income tax rate |  |  |
Statutory tax rate (as a percent) | 21.00% | 30.40% | 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) | (0.20%) | 7.80% |
State income taxes, net of federal benefit (as a percent) | 4.10% | 3.30% | 2.70%
Tax effect of defined benefit pension plan termination (as a percent) | 2.70% |  |
U.S. manufacturing benefit (as a percent) |  | (1.50%) | (2.40%)
Change in valuation allowance (as a percent) | 0.60% | (0.30%) | (1.00%)
U.S. research tax credits (as a percent) | (0.80%) | (1.90%) |
Miscellaneous items (as a percent) | (1.00%) | (1.10%) | (0.80%)
Effective tax rate (as a percent) | 26.40% | 36.70% | 33.50%
Undistributed earnings, reinvested | $ 55,600 |  |
Potential deferred tax attributable to undistributed foreign earnings | 3,100 |  |
Assets |  |  |
Deferred and other compensation | 19,603 | $ 18,326 |
State income tax - net operating losses, credits and other | 5,346 | 5,050 |
Warranty | 5,707 | 5,348 |
Rent | 2,714 | 2,971 |
Workers' compensation | 2,525 | 2,714 |
Employee benefits | 1,479 | 2,343 |
Federal net operating losses, credits | 2,032 |  |
Pension | 91 |  |
Other | 2,250 |  |
Valuation allowance | (2,312) | (1,224) |
Total deferred tax assets | 39,435 | 35,528 |
Liabilities |  |  |
Property, plant and equipment | (10,523) | (7,684) |
Inventory | (1,615) | (1,531) |
Goodwill and other intangibles | (6,627) | (3,575) |
Pension |  | (1,230) |
Other |  | (243) |
Net deferred tax assets | 20,670 | $ 21,265 |
Deferred tax assets associated with loss carryforwards |  |  |
Various U.S. state net operating losses (excluding federal tax effect) | 5,012 |  |
Foreign net operating losses | 2,032 |  |
Foreign capital losses | 17 |  |
Future taxable income needed to fully recover net deferred tax assets | $ 69,000 |  |

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