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Income Taxes
6 Months Ended
Jun. 30, 2020
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes The effective tax rate for the three and six months ended June 30, 2020 and 2019 was zero percent, primarily as a result of the estimated tax loss for the year and the change in valuation allowance. At June 30, 2020, all unrecognized tax benefits are subject to a full valuation allowance and, if recognized, will not affect the effective tax rate.