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Debt (Tables) | 9 Months Ended
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Sep. 30, 2024
Debt Disclosure [Abstract] |
Schedule of Long-term Debt | Long-term debt consists of the following (in thousands):
| September 30, 2024 |  | December 31, 2023
4.625% Senior Notes | $ | 460,038 |  |  | $ | 460,038 |
1.75% Convertible Notes | 149,109 |  |  | 550,000 |
3.625% Convertible Notes | 263,147 |  |  | — |
Total Notes | 872,294 |  |  | 1,010,038 |
Credit Agreement | — |  |  | — |
Less: Unamortized discount | (6,015) |  |  | (2,463) |
Deferred issuance costs (1) | (2,538) |  |  | (6,263) |
Total long-term debt | $ | 863,741 |  |  | $ | 1,001,312 |
(1)Includes $0.7 million and $0.8 million of carrying amount of deferred issuance costs on the 4.625% Senior Notes as of September 30, 2024 and December 31, 2023, respectively, $1.0 million and $5.5 million of carrying amount of deferred issuance costs on the 1.75% Convertible Notes as of September 30, 2024 and December 31, 2023, respectively, and $0.8 million of carrying amount of deferred issuance costs on the 3.625% Convertible Notes as of September 30, 2024.
Schedule of Debt | The following table provides the components of interest expense related to the 1.75% Convertible Notes (in thousands):
| Three months ended September 30, |  | Nine months ended September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Contractual interest expense | $ | 964 |  |  | $ | 2,746 |  |  | $ | 5,777 |  |  | $ | 14,963 |
Amortization of discount and deferred issuance costs | 185 |  |  | 466 |  |  | 1,128 |  |  | 1,395 |
Total interest expense related to 1.75% Convertible Notes | $ | 1,149 |  |  | $ | 3,212 |  |  | $ | 6,905 |  |  | $ | 16,358 |
The following table provides the components of interest expense related to the 3.625% Convertible Notes (in thousands):
| Three months ended
| September 30, 2024
Coupon interest expense | $ | 1,987 |
Amortization of discount and debt issuance costs | 258 |
Total interest expense related to 3.625% Convertible Notes | $ | 2,245 |

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