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Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
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Jan. 31, 2014
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Jan. 31, 2013
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Jan. 31, 2014
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Jan. 31, 2013
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| Schedule Of Income Taxes [Line Items] | ||||
| Company's effective tax rate | 5.80% | (17.50%) | 1.50% | (4.10%) |
| Income tax benefit related to research and development credit | $ (0.4) | |||
| Tax benefit resulting from a reduction in valuation allowance associated with Longboard Media acquisition | $ (2.5) | |||
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- Details
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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://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount 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 increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount 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 research tax credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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