|6 Months Ended|
Jun. 30, 2022
|Income Tax Disclosure [Abstract]|
|Income Tax||Income TaxOur effective tax rate may vary from the U.S. federal statutory tax rate due to the change in the mix of earnings in various state jurisdictions with different statutory rates, benefits related to tax credits, and the tax impact of non-deductible expenses, stock award activities and other permanent differences between income before income taxes and taxable income. The effective tax rate for the three and six months ended June 30, 2022 and 2021 was (40.7)% and 7.7%, and 21.6% and (25.0)%, respectively. The variance from the U.S. federal statutory tax rate of 21% for the three and six months ended June 30, 2022 was due primarily to the tax deductions related to foreign derived intangible income tax credit as well as the research and development tax credits, which were partially offset by Section 162(m) limitation and non-deductible ISO related stock compensation expense during the period. The variance from the U.S. federal tax rate of 21% for the three and six months ended June 30, 2021 was significantly impacted by tax benefits related to (1) a $34.1 million Pfenex CVR adjustment recorded during Q2 2021 due to the lower probability of achieving the specific development and regulatory milestone by December 31, 2021 as defined by the Pfenex CVR, and (2) net excess tax benefits from share-based compensation resulting from increased stock option exercise activity, stock award vesting and appreciation of our stock price during the period.|
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.
Reference 1: http://www.xbrl.org/2003/role/disclosureRef