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CONVERTIBLE SENIOR NOTES (Schedule of Interest Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
2030 Convertible Senior Notes        
Debt Instrument [Line Items]        
Contractual interest expense $ 1,516 $ 0 $ 1,516 $ 0
Amortization of debt issuance costs 229 0 229 0
Total interest expense 1,745 0 1,745 0
2028 Convertible Senior Notes        
Debt Instrument [Line Items]        
Contractual interest expense 1,721 3,375 8,415 10,125
Amortization of debt issuance costs 80 154 392 462
Total interest expense $ 1,801 $ 3,529 $ 8,807 $ 10,587