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Income Taxes
6 Months Ended
Jun. 30, 2021
Income Taxes  
Income Taxes

14. Income Taxes

The Company did not record any income tax expense or benefit for the three or six months ended June 30, 2021. The Company recognized an income tax benefit for the three and six months ended June 30, 2020 of $17.4 million.  Income tax benefit for the three and six months ended June 30, 2020 included $12.2 million resulting from the intraperiod tax allocation rules under Accounting Standards Codification (“ASC”) Topic 740-20, Intraperiod Tax Allocation, under which the Company recognized an income tax benefit resulting from a source of future taxable income attributable to the net credit to additional paid-in capital related to the issuance of the 3.75% Convertible Senior Notes, offset by the partial extinguishment of the 5.5% Convertible Senior Notes. In addition, the Company recorded $5.2 million of income tax benefit for the three and six months ended June 30, 2020 related to the recognition of net deferred tax liabilities in connection with the Giner, ELX Inc. acquisition, which resulted in a corresponding reduction in our deferred tax asset valuation allowance. The Company has not changed its overall conclusion with respect to the need for a valuation allowance against its net deferred tax assets, which remain fully reserved.

The net deferred tax asset generated from the Company’s net operating loss has been offset by a full valuation allowance because it is more likely than not that the tax benefits of the net operating loss carry forward will not be realized. The Company recognizes accrued interest and penalties related to unrecognized tax benefits, if any, as a component of income tax expense.