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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Asset impairment charges $ 6,000 $ 6,000  
Increase in liability as a result of increasing the profit element and risk premium input by 100 basis points   1,100  
Decrease in liability as a result of decreasing the profit element and risk premium input by 100 basis points   (1,100)  
Increase in liability as a result of decreasing the discount rate by 100 basis points   (10,600)  
Decrease in liability as a result of increasing the discount rate by 100 basis points   12,000  
Privately-Held Company      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments in debt securities     $ 6,000
Level 2 | Recurring      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Investments in debt securities 0 0 $ 0
Level 2 | Recurring | Convertible Notes | Notes due 2028      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Notes payable fair value 471,500 471,500  
Level 2 | Recurring | Convertible Notes | Notes due 2026      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Notes payable fair value 575,100 575,100  
Level 2 | Recurring | Convertible Notes | Notes due 2025      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Notes payable fair value $ 166,300 $ 166,300