|9 Months Ended
Sep. 30, 2022
|Income Tax Disclosure [Abstract]
The effective income tax rate was 9.0% and 11.4% for the three and nine months ended September 30, 2022 (Successor Period), respectively, and 9.1% and (1.9)% for the three and nine months ended September 30, 2021 (Predecessor Period), respectively. The difference in effective tax rate between the periods was primarily attributable to mix of earnings and certain adjustments for the Successor Period as a result of the Business Combination.
The effective income tax rate for the Successor Period differs from the U.S. statutory rate of 21% due primarily to U.S. federal permanent differences. The effective income tax rate for the Predecessor Period differs from the U.K. statutory rate of 19% due primarily to valuation allowances on certain U.K. losses.
On August 16, 2022, the U.S. enacted the Inflation Reduction Act that includes a new alternative minimum tax based upon financial statement income (book minimum tax), an excise tax on stock buybacks and tax incentives for energy and climate initiatives, among other provisions. The new book minimum tax is not expected to have a material impact on our consolidated financial statements. Separately, we are assessing the tax incentives in the legislation which could change our pre-tax or after-tax amounts and impact our tax rate.
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