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Income Taxes
3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes

For the three months ended March 31, 2015 we recorded income tax expense of $0.6 million due to recognition of a full valuation allowance against deferred tax assets as well as the amortization of tax deductible goodwill which gives rise to an indefinite-lived deferred tax liability. For the three months ended March 31, 2014, we recorded no income tax expense or benefit due to a full valuation allowance recorded against our deferred tax assets.

We assess the available positive and negative evidence to estimate if sufficient future taxable income will be generated to utilize the existing deferred tax assets. On the basis of this evaluation, as of March 31, 2015, a full valuation allowance of $40.8 million has been recorded to recognize only deferred tax assets that are more likely than not to be realized.