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CONVERTIBLE SENIOR NOTES (Tables)
 12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Schedule of Net Carrying Amount
The net carrying amount of the liability for the 2030 Notes is included as convertible senior notes, net, non-current in the consolidated balance sheets as follows (in thousands):
December 31,
20232022
Principal amount$441,000 $— 
Unamortized debt premium$524 $— 
Unamortized debt issuance costs$(6,907)$— 
Net carrying amount$434,617 $— 
The net carrying amount of the liability for the 2028 Notes is included as convertible senior notes, net, non-current in the consolidated balance sheets as follows (in thousands):
December 31,
20232022
Principal amount$459,000 $900,000 
Unamortized debt issuance costs(1,374)(3,317)
Net carrying amount$457,626 $896,683 
Schedule of Interest Expense
Interest expense for the 2030 Notes for the years ended December 31, 2023, 2022, and 2021 was as follows:
Years Ended December 31,
(in thousands)202320222021
Contractual interest expense$3,032 $— $— 
Amortization of debt issuance costs463 — — 
Total interest expense$3,495 $— $— 
Interest expense for the 2028 Notes was as follows for the years ended December 31, 2023, 2022, and 2021:
 Years Ended December 31,
(in thousands)202320222021
Contractual interest expense$10,133 $13,500 $11,812 
Amortization of debt issuance costs472 617 532 
Total interest expense$10,605 $14,117 $12,344