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Investments - Changes in Balance of Level 3 Securities (Details) - Significant Unobservable Inputs (Level 3)
$ in Thousands
3 Months Ended
Mar. 31, 2025
USD ($)
Summary of changes in Level 3 securities  
Beginning balance $ 95,125
Included in other comprehensive earnings (loss) 893
Purchases 5,070
Sales / Calls / Maturities (2,143)
Ending balance 98,945
Change in unrealized gains (losses) during the period for Level 3 assets held at period-end - OCI $ 893