Income taxes	3 Months Ended
Income taxes	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income taxes	Income Taxes The effective tax rates for the Company were (0.7)% and 70.1% for the three months ended March 31, 2021 and March 31, 2020, respectively. These effective tax rates include the impact of discrete items of $0 and $11.4 million for the three months ended March 31, 2021 and March 31, 2020, respectively. As of March 31, 2021, the projected annual effective tax rate for 2021 is (0.7)%. The discrete items recorded for the three months ended March 31, 2021 were $0. The discrete items recorded for the three months ended March 31, 2020 were primarily related to modifications to the tax rules for carryback of net operating losses as a result of the CARES Act which are expected to result in a federal tax refund of $11.3 million and an income tax benefit of the same amount. No benefit had been recognized with respect to the net operating losses due to a previously-recorded valuation allowance.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.