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Income Taxes - Reconciliation of the Statutory Federal Income Tax Rate with Federal and State Overall Effective Income Tax Rate from Continuing Operations (Detail)
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12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Income Tax Disclosure [Abstract] | |||
| Statutory federal rate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 35.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
| Effective state income tax rate | 3.15%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | 3.22%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | 4.22%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes |
| Valuation allowance adjustments | (0.14%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | 0.33%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | (3.15%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance |
| Uncertain tax positions | (0.08%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies | (1.76%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies | (3.37%)us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies |
| Other | 1.13%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | (2.42%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 2.68%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments |
| Effective tax rate | 39.06%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 34.37%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 35.38%us-gaap_EffectiveIncomeTaxRateContinuingOperations |
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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
Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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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 state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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 income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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