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FAIR VALUE MEASUREMENT - Level 3 Investment Activity (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other expense, net Other expense, net
Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 51,530 $ 82,787
Increase due to purchases of Level 3 investments   10,000
Decrease in fair value of Level 3 investments (8,718) (41,741)
Accrued interest on Level 3 investments 124 484
Ending balance $ 42,936 $ 51,530