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Investments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2024
Dec. 31, 2023
Net Investment Income [Line Items]      
Investment in private limited partnership $ 12,248 $ 12,248 $ 10,434
Net cumulative contribution capital 4,800 4,800 $ 4,800
Investment In Private Equity Limited Partnership      
Net Investment Income [Line Items]      
Unrealized gains on investment in private equity limited partnership $ 1,814 $ 1,814