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SECURITIES - Realized Gain (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]    
Gross Realized Gains $ 4,269 $ 1,565
Gross Realized Losses (526,117) (146,056)
Net Realized Gains (Losses) $ (521,848) $ (144,491)