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v3.26.1

Investments - Additional Information (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2026 USD ($) security | Mar. 31, 2025 USD ($) | Dec. 31, 2025 USD ($)
Investments |  |  |
Accrued investment income | $ | $ 30,456 |  | $ 30,026
Number of debt securities for which there is an allowance for credit losses | security | 8 |  |
Losses on fixed income securities | $ | $ 1,000 | $ 0 |
Number of debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded | security | 1,328 |  |
Unrealized loss | $ | $ 156,209 |  | 140,435
Unrealized losses as percentage of fixed income portfolio cost basis | 4.00% |  |
Unrealized losses relative to total invested assets (as a percent) | 3.00% |  |
Number of unrealized loss positions | security | 1,328 |  |
Number of securities in unrealized loss positions for 12 months or longer | security | 777 |  |
Fixed Income Securities |  |  |
Investments |  |  |
Accrued investment income | $ | $ 29,000 |  | $ 29,000

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