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Securities - Equity Securities Realized Losses (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
Net gain on equity investments $ 7,145 $ 21,214
Less: Net gains recognized on equity investments sold 8,123 5,401
Unrealized (loss) gain recognized on equity investments still held $ (978) $ 15,813