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Accounting for Uncertainty in Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | |
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Mar. 31, 2015
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Dec. 31, 2014
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Mar. 31, 2014
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| Income Tax Disclosure [Abstract] | |||
| Liability for unrecognized tax | $ 8.2us-gaap_UnrecognizedTaxBenefits | $ 12.4us-gaap_UnrecognizedTaxBenefits | |
| Unrecognized tax favorable impact on effective tax rate | 3.6us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | 5.6us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | |
| Accrued interest and penalties applied to uncertain tax positions | $ 3.4us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | $ 3.3us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense |
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- Details
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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