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CONVERTIBLE NOTES - Schedule of Convertible Notes (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
2027 Convertible Notes |  |
Long-term debt |  |
Coupon interest rate | 0.375% | 0.375%
Principal Amount | $ 949,042 | $ 949,042
Unamortized Debt Discount and Issuance Costs | (9,871) | (10,499)
Net Carrying Amount | 939,171 | 938,543
2027 Convertible Notes | Significant Other Observable Inputs (Level 2) | Fair value |  |
Long-term debt |  |
Amount | $ 881,764 | $ 887,354
2028 Convertible Notes |  |
Long-term debt |  |
Coupon interest rate | 0.375% | 0.375%
Principal Amount | $ 563,822 | $ 563,822
Unamortized Debt Discount and Issuance Costs | (5,007) | (5,429)
Net Carrying Amount | 558,815 | 558,393
2028 Convertible Notes | Significant Other Observable Inputs (Level 2) | Fair value |  |
Long-term debt |  |
Amount | $ 532,513 | $ 549,839
2030 Convertible Notes |  |
Long-term debt |  |
Coupon interest rate | 1.00% | 1.00%
Principal Amount | $ 249,172 | $ 249,172
Unamortized Debt Discount and Issuance Costs | (362) | (476)
Net Carrying Amount | 248,810 | 248,696
2030 Convertible Notes | Significant Other Observable Inputs (Level 2) | Fair value |  |
Long-term debt |  |
Amount | $ 278,437 | $ 293,300
Convertible Notes Payable2030 |  |
Long-term debt |  |
Coupon interest rate | 2.00% | 2.00%
Principal Amount | $ 572,993 | $ 572,993
Unamortized Debt Discount and Issuance Costs | (4,174) | (4,349)
Net Carrying Amount | 568,819 | 568,644
Convertible Notes Payable2030 | Significant Other Observable Inputs (Level 2) | Fair value |  |
Long-term debt |  |
Amount | $ 652,971 | $ 684,475

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