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Income Taxes (Tables) | 12 Months Ended
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Apr. 30, 2017
Income Tax Disclosure [Abstract] |
Income Tax Expense from Continuing Operations | Income tax expense from continuing operations consists of the following (in thousands):
| For the Year Ended April 30, |  |
| 2017 |  |  | 2016 |  |  | 2015 |  |
Current: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal | $ |  | 61,943 |  |  | $ |  | 48,961 |  |  | $ |  | 22,471 |  |
State |  |  | 9,349 |  |  |  |  | 6,622 |  |  |  |  | 4,188 |  |
Total current |  |  | 71,292 |  |  |  |  | 55,583 |  |  |  |  | 26,659 |  |
Deferred: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred federal |  |  | (6,969 | ) |  |  |  | (4,187 | ) |  |  |  | 2,274 |  |
Deferred state |  |  | (871 | ) |  |  |  | (261 | ) |  |  |  | (28 | ) |
Total deferred |  |  | (7,840 | ) |  |  |  | (4,448 | ) |  |  |  | 2,246 |  |
Total income tax expense | $ |  | 63,452 |  |  | $ |  | 51,135 |  |  | $ |  | 28,905 |  |
Reconciliation of Provision for Income Taxes from Continuing Operations | The following table presents a reconciliation of the provision for income taxes from continuing operations at statutory rates to the provision in the consolidated financial statements (in thousands):
| For the Year Ended April 30, |  |
| 2017 |  |  | 2016 |  |  | 2015 |  |
Federal income taxes expected at 35% statutory rate | $ |  | 66,957 |  |  | $ |  | 50,783 |  |  | $ |  | 27,556 |  |
State income taxes, less federal income tax benefit |  |  | 5,310 |  |  |  |  | 4,349 |  |  |  |  | 3,015 |  |
Stock compensation |  |  | (3,092 | ) |  |  |  | 108 |  |  |  |  | 82 |  |
Business meals and entertainment |  |  | 296 |  |  |  |  | 233 |  |  |  |  | 205 |  |
Domestic production activity deduction |  |  | (5,728 | ) |  |  |  | (4,414 | ) |  |  |  | (2,462 | ) |
Research and development tax credit |  |  | (453 | ) |  |  |  | (215 | ) |  |  |  | (100 | ) |
Change in uncertain tax positions |  |  | — |  |  |  |  | (91 | ) |  |  |  | — |  |
Other |  |  | 162 |  |  |  |  | 382 |  |  |  |  | 609 |  |
Total income tax expense | $ |  | 63,452 |  |  | $ |  | 51,135 |  |  | $ |  | 28,905 |  |
Deferred Tax Assets (Deferred Tax Liabilities) Related to Temporary Differences | Deferred tax assets (deferred tax liabilities) related to temporary differences are the following (in thousands):
|  | For the Years Ended April 30, |  |
|  | 2017 |  |  | 2016 |  |
Non-current tax assets/(liabilities): |  |  |  |  |  |  |  |  |
Net operating loss carryforwards and tax credits |  | $ | 2,902 |  |  | $ | 2,712 |  |
Inventories |  |  | 9,325 |  |  |  | 8,789 |  |
Accrued expenses, including compensation |  |  | 8,194 |  |  |  | 7,255 |  |
Environmental reserves |  |  | 279 |  |  |  | 264 |  |
Product liability |  |  | 515 |  |  |  | 748 |  |
Accrued promotions |  |  | 4,193 |  |  |  | 2,463 |  |
Workers' compensation |  |  | 796 |  |  |  | 1,082 |  |
Warranty reserve |  |  | 2,114 |  |  |  | 3,194 |  |
Stock-based compensation |  |  | 4,734 |  |  |  | 3,295 |  |
State bonus depreciation |  |  | 1,049 |  |  |  | 937 |  |
Property taxes |  |  | (189 | ) |  |  | (140 | ) |
Property, plant, and equipment |  |  | (30,017 | ) |  |  | (27,006 | ) |
Intangible assets |  |  | (27,032 | ) |  |  | (14,289 | ) |
Pension |  |  | 179 |  |  |  | 123 |  |
Other |  |  | 130 |  |  |  | 973 |  |
Less valuation allowance |  |  | (2,792 | ) |  |  | (2,561 | ) |
Net deferred tax asset/(liability) — total |  | $ | (25,620 | ) |  | $ | (12,161 | ) |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 + Details
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