Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Fixed-maturities available for sale, amortized cost | $ 6,561,040 | $ 4,550,954 |
| Trading securities, amortized cost | 49,346 | 70,050 |
| Equity securities, cost | 38,564 | 45,619 |
| Reinvested cash collateral held under securities lending agreements | 74,841 | 62,212 |
| Reinsurance recoverables, paid losses | $ 47,883 | $ 1,788 |
| Common stock, par value (in usd per share) | $ 0.001 | $ 0.001 |
| Common stock, shares authorized (in shares) | 485,000 | 485,000 |
| Common stock, shares, issued (in shares) | 155,514 | 156,913 |
| Common stock, shares, outstanding (in shares) | 133,556 | 135,498 |
| Treasury stock (in shares) | 21,958 | 21,415 |
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- Definition Reinsurance Recoverables, Paid Losses No definition available.
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- Definition Reinvested Cash Collateral Held Under Securities Lending Agreements No definition available.
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amortized cost of investments in debt securities classified as trading. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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