| Summary of Convertible Notes |
The Convertible Notes consisted of the following: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of December 31, | | 2022 | | 2021 | | Principal | | Unamortized Debt Issuance Costs | | Net Carrying Amount | | Principal | | Unamortized Debt Issuance Costs | | Net Carrying Amount | | | | | | | | | | | | | | (in thousands) | | 2025 Notes | $ | 284,105 | | | $ | (1,521) | | | $ | 282,584 | | | $ | 284,105 | | | $ | (2,168) | | | $ | 281,937 | | | 2026 Notes | 838,482 | | | (4,698) | | | 833,784 | | | 838,493 | | | (5,982) | | | 832,511 | | | 2027 Notes | 1,150,000 | | | (9,239) | | | 1,140,761 | | | 1,150,000 | | | (11,361) | | | 1,138,639 | | | 2028 Notes | 1,500,000 | | | (14,609) | | | 1,485,391 | | | — | | | — | | | — | | | Total | $ | 3,772,587 | | | $ | (30,067) | | | $ | 3,742,520 | | | $ | 2,272,598 | | | $ | (19,511) | | | $ | 2,253,087 | |
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