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Federal Income Taxes - Schedule of Reconciliation of Federal Income Tax on Income at the Corporate Rate to the Effective Tax Rate (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax Disclosure [Abstract] |  |  |
Effective income tax rate reconciliation, at federal statutory income tax rate, percent | 21.00% |  |
Tax at statutory rate | $ 54,187 | $ 96,267 | $ 58,839
Tax-advantaged interest | (1,332) | (2,229) | (4,087)
Dividends received deduction | (214) | (273) | (469)
Executive compensation | 2,452 | 1,989 | 1,848
Stock-based compensation | (1,482) | (1,804) | (893)
Other | (2,589) | (776) | 62
Total federal income tax expense | 51,022 | 93,174 | 55,300
Income before federal income tax, less preferred stock dividends | $ 248,834 | $ 449,212 | $ 270,986
Effective tax rate | 20.50% | 20.70% | 20.40%

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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to investment income that is tax advantaged. Tax advantaged investment securities generally are, by statute, tax-reduced, tax-deferred, or tax-free. + References No definition available. + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for dividend. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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