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Investments - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Schedule of Investments [Abstract]        
Realized gains (losses) on trading securities $ 0.8 $ 0.5 $ 0.8 $ 1.2