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CONVERTIBLE NOTES (Tables)
 3 Months Ended
Mar. 31, 2023
Debt Disclosure [Abstract]  
Schedule Of Convertible Debt The outstanding 2028 Convertible Notes balances as of March 31, 2023 and December 31, 2022 are summarized in the following table (in thousands):
March 31, 2023December 31, 2022
Long Term Debt
Outstanding principal$460,000 $460,000 
Unamortized initial purchaser’s debt discount and debt issuance cost(11,603)(12,091)
Net carrying amount$448,397 $447,909 
The following table presents total interest expense recognized related to the 2028 Convertible Notes during the three months ended March 31, 2023 and 2022 (in thousands):
Three Months Ended
March 31,
20232022
Cash interest expense
Contractual interest expense$575 $575 
Non-cash interest expense
Amortization of debt discount and debt issuance cost499 495 
Total interest expense$1,074 $1,070