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Income Taxes
6 Months Ended
Jun. 30, 2020
Income Tax Disclosure [Abstract]  
Income Taxes

6. Income Taxes

Our effective tax rate for the three and six months ended June 30, 2020 was 16.8% and 19.4%, respectively, compared to (62.8%) and 0.8%, respectively, for the three and six months ended June 30, 2019. The significant items impacting the 2020 rates include a benefit from the reversal of liability for an uncertain tax position resulting from statute expiration, a benefit recognized due to application of the exception to the rules regarding intraperiod tax allocation, a provision for net state and foreign taxes, certain permanent items and a change in the valuation allowance established for the net deferred tax asset balance projected for December 31, 2020.  The significant items impacting the 2019 rates include a benefit recognized due to application of the exception to the rules regarding intraperiod tax allocation, a provision for net state and foreign taxes, certain permanent items and a change in the valuation allowance established for the net deferred tax asset balance that had been projected for December 31, 2019.  We recognize valuation allowances on deferred tax assets if, based on the weight of the evidence, we determine it is more likely than not such assets will not be realized. Changes in valuation allowances are included in our tax provision in the period of change. In determining whether a valuation allowance is warranted, we evaluate factors such as prior years’ earnings history, expected future earnings, loss carry-forward periods, reversals of existing deferred tax liabilities and tax planning strategies that potentially enhance the likelihood of the realization of a deferred tax asset.  At June 30, 2020 and December 31, 2019, substantially all of our net deferred tax assets were subject to a valuation allowance.