Income Taxes - Reconciliation of Statutory Federal Income Tax Rate to Effective Consolidated Tax Rate (Detail) |
4 Months Ended | 8 Months Ended | 12 Months Ended | ||
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Apr. 30, 2018 |
Dec. 31, 2017 |
Apr. 30, 2019 |
Apr. 30, 2018 |
Apr. 30, 2017 |
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| Income Tax Disclosure [Abstract] | |||||
| U.S. federal statutory income tax rate | 21.00% | 35.00% | 21.00% | 30.40% | 35.00% |
| Foreign tax rates differential | 5.00% | (2.30%) | (9.10%) | ||
| Transition tax | 9.00% | ||||
| Deferred tax remeasurement | (2.40%) | ||||
| Non-deductible officers compensation | 1.10% | ||||
| Excess tax benefit on stock-based compensation | (3.10%) | ||||
| Change in valuation allowance | (2.00%) | (2.30%) | (3.10%) | ||
| Other | 1.70% | 2.30% | |||
| Effective income tax rate | 22.00% | 34.10% | 25.10% | ||
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- Definition Effective income tax rate reconciliation deferred taxes remeasurement percent. No definition available.
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- Definition Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017. No definition available.
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to equity-based compensation costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to excess tax benefit for share-based compensation cost. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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