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Investment in Securities - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2022
USD ($)
position
Mar. 31, 2021
USD ($)
Dec. 31, 2021
position
Investments, Debt and Equity Securities [Abstract]      
Available-for-sale securities, number of positions | position 180   101
Available-for-sale securities, percentage of total securities 49.00%   28.00%
Available-for-sale securities, number of positions, greater than one year | position 4   0
Proceeds from sales of securities available-for-sale | $ $ 0 $ 2,991  
Available-for-sale securities, gross realized gains | $ $ 0 $ 48