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Income Taxes | 9 Months Ended
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Sep. 30, 2023
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The following table presents our income tax provision and our income tax rate for the three and nine months ended September 30, 2023 and 2022 (in thousands, except percentages):
| For the three months ended September 30, |  | For the nine months ended September 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
Income tax provision | $ | 64,863 |  |  | $ | 42,153 |  |  | $ | 159,292 |  |  | $ | 104,927 |
Income tax rate | 27.7 | % |  | 28.5 | % |  | 27.4 | % |  | 27.3 | %
The difference between the U.S. statutory tax rate of 21% and our effective income tax rate for both the three and nine months ended September 30, 2023 and 2022 was primarily a result of state and local income taxes and other permanent book-to-tax differences. The increase in our income tax provision for the three and nine months ended September 30, 2023, when compared to the three and nine months ended September 30, 2022, was primarily due to greater income before income taxes. While our effective income tax rate for the nine months ended September 30, 2023 is comparable to that for the nine months ended September 30, 2022, the difference between our effective income tax rate for the three months ended September 30, 2023 as compared to the three months ended September 30, 2022 was attributable to a revision to our estimate of the full year impact of certain permanent book-to-tax differences during the third quarter of 2022. As of September 30, 2023 and December 31, 2022, we had no unrecognized income tax benefits. We file a consolidated federal income tax return including all of our U.S. subsidiaries with the Internal Revenue Service. We additionally file income tax returns with various state, local, and foreign tax agencies. Our income tax returns are subject to audit by various taxing authorities and are currently under examination for the years 2017 through 2020. Legislation has been enacted in the United Kingdom to implement measures in concert with the Base Erosion and Profit Shifting Pillar Two framework for international taxation developed by the member countries of the Organization for Economic Co-operation and Development (the “Pillar Two Model Rules”). The Pillar Two Model Rules are intended to ensure that multinational enterprises pay a minimum 15% effective tax rate in every jurisdiction in which they operate. While we do not anticipate that these rules will have a material effect on our tax provision or effective tax rate, we continue to monitor evolving tax legislation in the jurisdictions in which we operate.

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480990/946-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//740/tableOfContent Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-14 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-21 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 270 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482526/740-270-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 17 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-17 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482603/740-30-50-2 + Details
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