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Investment in Securities - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
USD ($)
security
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
security
Sep. 30, 2023
USD ($)
Dec. 31, 2023
security
Investments, Debt and Equity Securities [Abstract]          
Available-for-sale securities, number of positions | security 244   244   275
Available-for-sale securities, percentage of total securities 90.00%   90.00%   98.90%
Available-for-sale securities, number of positions, greater than one year | security 226   226   210
Proceeds from sales of securities available-for-sale $ 0 $ 0 $ 24,985 $ 111,053  
Available-for-sale securities, gross realized gains 0 0 0 187  
Available-for-sale securities, gross realized losses $ 0 $ 0 $ 13 $ 347