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Income Taxes | 9 Months Ended
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Sep. 30, 2023
Income Tax Disclosure [Abstract] |
Income Taxes | 12. INCOME TAXES Income Tax Expense
Income Tax Rate Reconciliation
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2023 | 2022 |  | 2023 | 2022
Tax provision at U.S. federal statutory rate | $ | 171 |  | $ | 91 |  |  | $ | 449 |  | $ | 321 |
Nontaxable investment income | (12) |  | (6) |  |  | (32) |  | (20) |
Other | 3 |  | 7 |  |  | (12) |  | (1) |
Provision for income taxes | $ | 162 |  | $ | 92 |  |  | $ | 405 |  | $ | 300 |
Uncertain Tax Positions
Rollforward of Unrecognized Tax Benefits |  |
| Three Months Ended September 30, |  | Nine Months Ended September 30, |  |
| 2023 | 2022 |  | 2023 | 2022 |  |
Balance, beginning of period | $ | 23 |  | $ | 18 |  |  | $ | 22 |  | $ | 16 |  |  |
Gross increases - tax positions in current period | 2 |  | 3 |  |  | 4 |  | 5 |  |  |
Lapse of statute of limitations | — |  | — |  |  | (1) |  | — |  |  |
Balance, end of period | $ | 25 |  | $ | 21 |  |  | $ | 25 |  | $ | 21 |  |  |
The entire amount of unrecognized tax benefits, if recognized, would affect the effective tax rate in the period of the release. Other Tax Matters As of September 30, 2023, the Company has a deferred tax asset for foreign net operating losses ("NOLs") of $42 partially offset by a valuation allowance of $20. While the foreign NOLs do not expire, this assessment reflects uncertainty in the Company's ability to generate sufficient taxable income in the near term in those specific jurisdictions. Management has assessed the need for a valuation allowance against its deferred tax assets based on tax character and jurisdiction. In making the assessment, management considered future taxable temporary difference reversals, future taxable income exclusive of reversing temporary differences and carryovers, taxable income in open carry back years and other tax planning strategies which management views as prudent and feasible. The federal income tax audits for the Company have been completed through 2013. The acquired Navigators Group is currently under IRS audit for the pre-acquisition 2019 tax period. The statute of limitations is closed through the 2019 tax year with the exception of NOL carryforwards utilized in open tax years and the Navigators pre-acquisition 2019 tax period. Management believes that adequate provision has been made in the Company's Condensed Consolidated Financial Statements for any potential adjustments that may result from tax examinations and other tax-related matters for all open tax years.

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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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