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FAIR VALUE MEASUREMENTS - Schedule of Balances Elected to Account for at Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Fair Value Disclosures [Abstract]    
Other investments $ 3,468,281 $ 3,515,566
Other assets 1,306 2,227
Other liabilities $ 1,823 $ 2,742