DEBT - Long-term debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total carrying amount of debt	$ 1,295,868	$ 1,293,738
Less: debt, current	(97,264)	0
Debt, non-current	1,198,604	1,293,738
Convertible Notes | Notes due 2028
Debt Instrument [Line Items]
Long-term debt, gross	575,000	575,000
Less: unamortized debt issuance costs	(5,082)	(5,408)
Total carrying amount of debt	569,918	569,592
Convertible Notes | Notes due 2026
Debt Instrument [Line Items]
Long-term debt, gross	632,500	632,500
Less: unamortized debt issuance costs	(3,814)	(4,317)
Total carrying amount of debt	628,686	628,183
Convertible Notes | Notes due 2025
Debt Instrument [Line Items]
Long-term debt, gross	102,173	102,175
Less: unamortized debt discount	(4,467)	(5,644)
Less: unamortized debt issuance costs	(442)	(568)
Total carrying amount of debt	97,264	$ 95,963
Less: debt, current	$ (102,200)